<div class="xblock xblock-public_view xblock-public_view-vertical" data-block-type="vertical" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="VerticalStudentView" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@vertical+block@c4b5dcac8d424abda2bf7e1c3885b0bd" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<h2 class="hd hd-2 unit-title">Part I</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@02b36f40e4ed4618927e78511ab9735b">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-block-type="html" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@02b36f40e4ed4618927e78511ab9735b" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p><strong>Background </strong></p>
<p>Genital Herpes is widely prevalent worldwide and is primarily caused by the Herpes Simplex Virus (HSV-2). In order to control the spread of Genital Herpes, accurate, inexpensive and easy to perform tests for HSV-2 are needed. The “Gold Standard” test for HSV-2 is the Western Blot, an expensive test that is difficult to obtain in some countries such as Kenya. Since the Western Blot is the Gold Standard test for the Herpes Simplex Virus you should think of the positive samples it identifies as true positives and the negative samples it identifies as true negatives. <strong>Due to the expense of the Western Blot test,</strong> various drug companies have developed cheaper alternative tests, including the Focus Generation 1 test, the Focus Generation 2 test, the Kalon test, and the Biokit test.</p>
<p>You are planning to do a large study to evaluate the impact of a health intervention on HSV-2 transmission in Kenya. First, you decide to carry out a small study to assess the sensitivity and specificity of these tests in Kenya. You obtain informed consent from 250 men from Kisumu district to participate in the study. Blood samples were collected from 227 of the men and tested with each of the 4 tests as well as with Western Blot. <strong>Why would you be interested in comparing these alternative biological tests to the Western Blot test, given that is the Gold Standard?</strong> Recall that the Western Blot is both expensive and difficult to obtain in Kenya. If you could find a cheaper alternative that has similar sensitivity and specificity as the Western Blot test, you may recommend using that test in Kenya instead of Western Blot.</p>
<p></p>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@9f25139604c64d198dc0aee17c239848">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@9f25139604c64d198dc0aee17c239848" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_9f25139604c64d198dc0aee17c239848" class="problems-wrapper" role="group"
aria-labelledby="9f25139604c64d198dc0aee17c239848-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@9f25139604c64d198dc0aee17c239848" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@9f25139604c64d198dc0aee17c239848/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="9f25139604c64d198dc0aee17c239848-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@9f25139604c64d198dc0aee17c239848-problem-progress" tabindex="-1">
Question 1
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@9f25139604c64d198dc0aee17c239848-problem-progress"></div>
<div class="problem">
<div>
<p>Define sensitivity.</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="inputtype_9f25139604c64d198dc0aee17c239848_2_1" class=" capa_inputtype textline">
<div class="unanswered ">
<input type="text" name="input_9f25139604c64d198dc0aee17c239848_2_1" id="input_9f25139604c64d198dc0aee17c239848_2_1" aria-describedby="status_9f25139604c64d198dc0aee17c239848_2_1" value="" size="70"/>
<span class="trailing_text" id="trailing_text_9f25139604c64d198dc0aee17c239848_2_1"/>
<span class="status unanswered" id="status_9f25139604c64d198dc0aee17c239848_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_9f25139604c64d198dc0aee17c239848_2_1" class="answer"/>
</div>
</div></div>
<div class="solution-span">
<span id="solution_9f25139604c64d198dc0aee17c239848_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 1" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_9f25139604c64d198dc0aee17c239848" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_9f25139604c64d198dc0aee17c239848">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="9f25139604c64d198dc0aee17c239848-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="9f25139604c64d198dc0aee17c239848-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="9f25139604c64d198dc0aee17c239848-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8d5ff871a4374c4b89255b732a6aad7e">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8d5ff871a4374c4b89255b732a6aad7e" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_8d5ff871a4374c4b89255b732a6aad7e" class="problems-wrapper" role="group"
aria-labelledby="8d5ff871a4374c4b89255b732a6aad7e-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8d5ff871a4374c4b89255b732a6aad7e" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@8d5ff871a4374c4b89255b732a6aad7e/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="8d5ff871a4374c4b89255b732a6aad7e-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8d5ff871a4374c4b89255b732a6aad7e-problem-progress" tabindex="-1">
Question 2
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8d5ff871a4374c4b89255b732a6aad7e-problem-progress"></div>
<div class="problem">
<div>
<p>Define specificity.</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="inputtype_8d5ff871a4374c4b89255b732a6aad7e_2_1" class=" capa_inputtype textline">
<div class="unanswered ">
<input type="text" name="input_8d5ff871a4374c4b89255b732a6aad7e_2_1" id="input_8d5ff871a4374c4b89255b732a6aad7e_2_1" aria-describedby="status_8d5ff871a4374c4b89255b732a6aad7e_2_1" value="" size="70"/>
<span class="trailing_text" id="trailing_text_8d5ff871a4374c4b89255b732a6aad7e_2_1"/>
<span class="status unanswered" id="status_8d5ff871a4374c4b89255b732a6aad7e_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_8d5ff871a4374c4b89255b732a6aad7e_2_1" class="answer"/>
</div>
</div></div>
<div class="solution-span">
<span id="solution_8d5ff871a4374c4b89255b732a6aad7e_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 2" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_8d5ff871a4374c4b89255b732a6aad7e" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_8d5ff871a4374c4b89255b732a6aad7e">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8d5ff871a4374c4b89255b732a6aad7e-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8d5ff871a4374c4b89255b732a6aad7e-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8d5ff871a4374c4b89255b732a6aad7e-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-3" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ac18539e18f441d59ed042ce36ca2c5b">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ac18539e18f441d59ed042ce36ca2c5b" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_ac18539e18f441d59ed042ce36ca2c5b" class="problems-wrapper" role="group"
aria-labelledby="ac18539e18f441d59ed042ce36ca2c5b-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ac18539e18f441d59ed042ce36ca2c5b" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@ac18539e18f441d59ed042ce36ca2c5b/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="ac18539e18f441d59ed042ce36ca2c5b-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ac18539e18f441d59ed042ce36ca2c5b-problem-progress" tabindex="-1">
Question 3
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ac18539e18f441d59ed042ce36ca2c5b-problem-progress"></div>
<div class="problem">
<div>
<p>Which one is more important: sensitivity or specificity?</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="inputtype_ac18539e18f441d59ed042ce36ca2c5b_2_1" class=" capa_inputtype textline">
<div class="unanswered ">
<input type="text" name="input_ac18539e18f441d59ed042ce36ca2c5b_2_1" id="input_ac18539e18f441d59ed042ce36ca2c5b_2_1" aria-describedby="status_ac18539e18f441d59ed042ce36ca2c5b_2_1" value="" size="70"/>
<span class="trailing_text" id="trailing_text_ac18539e18f441d59ed042ce36ca2c5b_2_1"/>
<span class="status unanswered" id="status_ac18539e18f441d59ed042ce36ca2c5b_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_ac18539e18f441d59ed042ce36ca2c5b_2_1" class="answer"/>
</div>
</div></div>
<div class="solution-span">
<span id="solution_ac18539e18f441d59ed042ce36ca2c5b_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 3" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_ac18539e18f441d59ed042ce36ca2c5b" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_ac18539e18f441d59ed042ce36ca2c5b">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="ac18539e18f441d59ed042ce36ca2c5b-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="ac18539e18f441d59ed042ce36ca2c5b-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="ac18539e18f441d59ed042ce36ca2c5b-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-4" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@04044ca82855422ea04b641e13a04776">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@04044ca82855422ea04b641e13a04776" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_04044ca82855422ea04b641e13a04776" class="problems-wrapper" role="group"
aria-labelledby="04044ca82855422ea04b641e13a04776-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@04044ca82855422ea04b641e13a04776" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@04044ca82855422ea04b641e13a04776/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="04044ca82855422ea04b641e13a04776-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@04044ca82855422ea04b641e13a04776-problem-progress" tabindex="-1">
Question 4
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@04044ca82855422ea04b641e13a04776-problem-progress"></div>
<div class="problem">
<div>
<p>A &#8220;Gold Standard&#8221;</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_04044ca82855422ea04b641e13a04776_2_1">
<fieldset aria-describedby="status_04044ca82855422ea04b641e13a04776_2_1">
<div class="field">
<input type="radio" name="input_04044ca82855422ea04b641e13a04776_2_1" id="input_04044ca82855422ea04b641e13a04776_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="04044ca82855422ea04b641e13a04776_2_1-choice_0-label" for="input_04044ca82855422ea04b641e13a04776_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_04044ca82855422ea04b641e13a04776_2_1"> Tells us who in the population truly has the disease
</label>
</div>
<div class="field">
<input type="radio" name="input_04044ca82855422ea04b641e13a04776_2_1" id="input_04044ca82855422ea04b641e13a04776_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="04044ca82855422ea04b641e13a04776_2_1-choice_1-label" for="input_04044ca82855422ea04b641e13a04776_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_04044ca82855422ea04b641e13a04776_2_1"> Is the perfect test
</label>
</div>
<div class="field">
<input type="radio" name="input_04044ca82855422ea04b641e13a04776_2_1" id="input_04044ca82855422ea04b641e13a04776_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="04044ca82855422ea04b641e13a04776_2_1-choice_2-label" for="input_04044ca82855422ea04b641e13a04776_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_04044ca82855422ea04b641e13a04776_2_1"> Is the best available existing test
</label>
</div>
<div class="field">
<input type="radio" name="input_04044ca82855422ea04b641e13a04776_2_1" id="input_04044ca82855422ea04b641e13a04776_2_1_choice_3" class="field-input input-radio" value="choice_3"/><label id="04044ca82855422ea04b641e13a04776_2_1-choice_3-label" for="input_04044ca82855422ea04b641e13a04776_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_04044ca82855422ea04b641e13a04776_2_1"> Is useful for calculating the positive and negative predictive values, but not the sensitivity and specificity
</label>
</div>
<span id="answer_04044ca82855422ea04b641e13a04776_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_04044ca82855422ea04b641e13a04776_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div>
<div class="solution-span">
<span id="solution_04044ca82855422ea04b641e13a04776_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 4" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_04044ca82855422ea04b641e13a04776" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_04044ca82855422ea04b641e13a04776">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="04044ca82855422ea04b641e13a04776-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="04044ca82855422ea04b641e13a04776-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="04044ca82855422ea04b641e13a04776-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-block-type="vertical" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="VerticalStudentView" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@vertical+block@d95b7c3363634ddd9db325651039ccab" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<h2 class="hd hd-2 unit-title">Part II</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@e52d0f4397bb410197de8d935e18fec1">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-block-type="html" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@e52d0f4397bb410197de8d935e18fec1" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p>First, you test all of the blood samples with the Western Blot test. The test shows that 145 of the blood samples are positive and 82 are negative. To compare the four cheaper tests with Western Blot, you re-test them to determine how many true positives and true negatives each test identifies. </p>
<p>When you retest the samples with the Focus Generation 1 test, the test identifies 173 positives and 54 negatives. 143 of the 173 Focus Generation 1 positives were positive when tested with Western Blot. 52 of the 54 Focus Generation 1 negatives were also negative when tested with Western Blot.</p>
<p><strong>Note:</strong> You can use the table below to help calculate your answers for sensitivity and specificity.</p>
<table style="width: 655px; line-height: 24.6px; overflow-wrap: normal;" border="1" height="216"><caption><b>True Characteristics in the Population</b></caption>
<tbody>
<tr><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Do not have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th></tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test positive for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">True Positive (TP):</td>
<td style="text-align: left;" nowrap="nowrap">False Positive (FP):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test negative for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">False Negative (FN):</td>
<td style="text-align: left;" nowrap="nowrap">True Negative (TN):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
</tr>
</tbody>
</table>
<p></p>
<p></p>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@eac34f857a6d488fbb491bac47f9a25c">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@eac34f857a6d488fbb491bac47f9a25c" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_eac34f857a6d488fbb491bac47f9a25c" class="problems-wrapper" role="group"
aria-labelledby="eac34f857a6d488fbb491bac47f9a25c-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@eac34f857a6d488fbb491bac47f9a25c" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@eac34f857a6d488fbb491bac47f9a25c/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="eac34f857a6d488fbb491bac47f9a25c-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@eac34f857a6d488fbb491bac47f9a25c-problem-progress" tabindex="-1">
Question 5
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@eac34f857a6d488fbb491bac47f9a25c-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_eac34f857a6d488fbb491bac47f9a25c_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_eac34f857a6d488fbb491bac47f9a25c_2_1" id="label_eac34f857a6d488fbb491bac47f9a25c_2_1">For Focus Generation 1, enter the True Positive (TP):</label>
<input type="text" name="input_eac34f857a6d488fbb491bac47f9a25c_2_1" id="input_eac34f857a6d488fbb491bac47f9a25c_2_1" data-input-id="eac34f857a6d488fbb491bac47f9a25c_2_1" value="" aria-describedby="status_eac34f857a6d488fbb491bac47f9a25c_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_eac34f857a6d488fbb491bac47f9a25c_2_1"/>
<span class="status unanswered" id="status_eac34f857a6d488fbb491bac47f9a25c_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_eac34f857a6d488fbb491bac47f9a25c_2_1" class="answer"/>
<div id="input_eac34f857a6d488fbb491bac47f9a25c_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div id="formulaequationinput_eac34f857a6d488fbb491bac47f9a25c_3_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_eac34f857a6d488fbb491bac47f9a25c_3_1" id="label_eac34f857a6d488fbb491bac47f9a25c_3_1">For Focus Generation 1, enter the False Positive (FP):</label>
<input type="text" name="input_eac34f857a6d488fbb491bac47f9a25c_3_1" id="input_eac34f857a6d488fbb491bac47f9a25c_3_1" data-input-id="eac34f857a6d488fbb491bac47f9a25c_3_1" value="" aria-describedby="status_eac34f857a6d488fbb491bac47f9a25c_3_1" size="20"/>
<span class="trailing_text" id="trailing_text_eac34f857a6d488fbb491bac47f9a25c_3_1"/>
<span class="status unanswered" id="status_eac34f857a6d488fbb491bac47f9a25c_3_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_eac34f857a6d488fbb491bac47f9a25c_3_1" class="answer"/>
<div id="input_eac34f857a6d488fbb491bac47f9a25c_3_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div id="formulaequationinput_eac34f857a6d488fbb491bac47f9a25c_4_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_eac34f857a6d488fbb491bac47f9a25c_4_1" id="label_eac34f857a6d488fbb491bac47f9a25c_4_1">For Focus Generation 1, enter the True Negative (TN):</label>
<input type="text" name="input_eac34f857a6d488fbb491bac47f9a25c_4_1" id="input_eac34f857a6d488fbb491bac47f9a25c_4_1" data-input-id="eac34f857a6d488fbb491bac47f9a25c_4_1" value="" aria-describedby="status_eac34f857a6d488fbb491bac47f9a25c_4_1" size="20"/>
<span class="trailing_text" id="trailing_text_eac34f857a6d488fbb491bac47f9a25c_4_1"/>
<span class="status unanswered" id="status_eac34f857a6d488fbb491bac47f9a25c_4_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_eac34f857a6d488fbb491bac47f9a25c_4_1" class="answer"/>
<div id="input_eac34f857a6d488fbb491bac47f9a25c_4_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div id="formulaequationinput_eac34f857a6d488fbb491bac47f9a25c_5_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_eac34f857a6d488fbb491bac47f9a25c_5_1" id="label_eac34f857a6d488fbb491bac47f9a25c_5_1">For Focus Generation 1, enter the False Negative (FN):</label>
<input type="text" name="input_eac34f857a6d488fbb491bac47f9a25c_5_1" id="input_eac34f857a6d488fbb491bac47f9a25c_5_1" data-input-id="eac34f857a6d488fbb491bac47f9a25c_5_1" value="" aria-describedby="status_eac34f857a6d488fbb491bac47f9a25c_5_1" size="20"/>
<span class="trailing_text" id="trailing_text_eac34f857a6d488fbb491bac47f9a25c_5_1"/>
<span class="status unanswered" id="status_eac34f857a6d488fbb491bac47f9a25c_5_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_eac34f857a6d488fbb491bac47f9a25c_5_1" class="answer"/>
<div id="input_eac34f857a6d488fbb491bac47f9a25c_5_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 5" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_eac34f857a6d488fbb491bac47f9a25c" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_eac34f857a6d488fbb491bac47f9a25c">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="eac34f857a6d488fbb491bac47f9a25c-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="eac34f857a6d488fbb491bac47f9a25c-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="eac34f857a6d488fbb491bac47f9a25c-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@4e503e0902044d50905eb047a04837b7">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@4e503e0902044d50905eb047a04837b7" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_4e503e0902044d50905eb047a04837b7" class="problems-wrapper" role="group"
aria-labelledby="4e503e0902044d50905eb047a04837b7-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@4e503e0902044d50905eb047a04837b7" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@4e503e0902044d50905eb047a04837b7/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="4e503e0902044d50905eb047a04837b7-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@4e503e0902044d50905eb047a04837b7-problem-progress" tabindex="-1">
Question 6
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@4e503e0902044d50905eb047a04837b7-problem-progress"></div>
<div class="problem">
<div>
<p>For Focus Generation 1, calculate the sensitivity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_4e503e0902044d50905eb047a04837b7_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_4e503e0902044d50905eb047a04837b7_2_1" id="input_4e503e0902044d50905eb047a04837b7_2_1" data-input-id="4e503e0902044d50905eb047a04837b7_2_1" value="" aria-describedby="trailing_text_4e503e0902044d50905eb047a04837b7_2_1 status_4e503e0902044d50905eb047a04837b7_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_4e503e0902044d50905eb047a04837b7_2_1">%</span>
<span class="status unanswered" id="status_4e503e0902044d50905eb047a04837b7_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_4e503e0902044d50905eb047a04837b7_2_1" class="answer"/>
<div id="input_4e503e0902044d50905eb047a04837b7_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_4e503e0902044d50905eb047a04837b7_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 6" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_4e503e0902044d50905eb047a04837b7" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_4e503e0902044d50905eb047a04837b7">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
<span class="problem-action-button-wrapper">
<button type="button" class="reset problem-action-btn btn-default btn-small" data-value="Reset"><span class="icon fa fa-refresh" aria-hidden="true"></span><span aria-hidden="true">Reset</span><span class="sr">Reset your answer</span></button>
</span>
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="4e503e0902044d50905eb047a04837b7-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="4e503e0902044d50905eb047a04837b7-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="4e503e0902044d50905eb047a04837b7-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-3" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ee4cbc2d2faf4917975151c7ef5d546a">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ee4cbc2d2faf4917975151c7ef5d546a" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_ee4cbc2d2faf4917975151c7ef5d546a" class="problems-wrapper" role="group"
aria-labelledby="ee4cbc2d2faf4917975151c7ef5d546a-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ee4cbc2d2faf4917975151c7ef5d546a" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@ee4cbc2d2faf4917975151c7ef5d546a/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="ee4cbc2d2faf4917975151c7ef5d546a-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ee4cbc2d2faf4917975151c7ef5d546a-problem-progress" tabindex="-1">
Question 7
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@ee4cbc2d2faf4917975151c7ef5d546a-problem-progress"></div>
<div class="problem">
<div>
<p>For Focus Generation 1, calculate the specificity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_ee4cbc2d2faf4917975151c7ef5d546a_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_ee4cbc2d2faf4917975151c7ef5d546a_2_1" id="input_ee4cbc2d2faf4917975151c7ef5d546a_2_1" data-input-id="ee4cbc2d2faf4917975151c7ef5d546a_2_1" value="" aria-describedby="trailing_text_ee4cbc2d2faf4917975151c7ef5d546a_2_1 status_ee4cbc2d2faf4917975151c7ef5d546a_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_ee4cbc2d2faf4917975151c7ef5d546a_2_1">%</span>
<span class="status unanswered" id="status_ee4cbc2d2faf4917975151c7ef5d546a_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_ee4cbc2d2faf4917975151c7ef5d546a_2_1" class="answer"/>
<div id="input_ee4cbc2d2faf4917975151c7ef5d546a_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_ee4cbc2d2faf4917975151c7ef5d546a_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 7" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_ee4cbc2d2faf4917975151c7ef5d546a" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_ee4cbc2d2faf4917975151c7ef5d546a">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
<span class="problem-action-button-wrapper">
<button type="button" class="reset problem-action-btn btn-default btn-small" data-value="Reset"><span class="icon fa fa-refresh" aria-hidden="true"></span><span aria-hidden="true">Reset</span><span class="sr">Reset your answer</span></button>
</span>
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="ee4cbc2d2faf4917975151c7ef5d546a-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="ee4cbc2d2faf4917975151c7ef5d546a-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="ee4cbc2d2faf4917975151c7ef5d546a-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-block-type="vertical" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="VerticalStudentView" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@vertical+block@dd2c280bfdf34fd1bb21ad12cd526291" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<h2 class="hd hd-2 unit-title">Part III</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@6af33a2a9e08445ba5fe3783738f24bf">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-block-type="html" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@6af33a2a9e08445ba5fe3783738f24bf" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p style="text-rendering: optimizeLegibility; margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; outline: 0px; font-stretch: inherit; font-size: 16px; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; vertical-align: baseline;"><span face="Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif" style="font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;">Focus Generation 2 identified 40 negative blood samples. 39 of these were also negative by Western Blot. The remaining 187 samples tested positive with Focus Generation 2. 144 of these samples tested positive with Western Blot. </span></p>
<p style="text-rendering: optimizeLegibility; margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; outline: 0px; font-stretch: inherit; font-size: 16px; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; vertical-align: baseline;"><span face="Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif" style="font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;"><b>Recall: First, you tested all of the blood samples with the Western Blot test. The test showed that 145 of the blood samples were positive and 82 were negative.</b></span></p>
<table style="width: 655px; line-height: 24.6px; overflow-wrap: normal;" border="1" height="216"><caption><b>True Characteristics in the Population</b></caption>
<tbody>
<tr><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Do not have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th></tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test positive for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">True Positive (TP):</td>
<td style="text-align: left;" nowrap="nowrap">False Positive (FP):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test negative for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">False Negative (FN):</td>
<td style="text-align: left;" nowrap="nowrap">True Negative (TN):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
</tr>
</tbody>
</table>
<p></p>
<p></p>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bac6597415954ff1b4704259fc1cc8c4">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bac6597415954ff1b4704259fc1cc8c4" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_bac6597415954ff1b4704259fc1cc8c4" class="problems-wrapper" role="group"
aria-labelledby="bac6597415954ff1b4704259fc1cc8c4-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bac6597415954ff1b4704259fc1cc8c4" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@bac6597415954ff1b4704259fc1cc8c4/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="bac6597415954ff1b4704259fc1cc8c4-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bac6597415954ff1b4704259fc1cc8c4-problem-progress" tabindex="-1">
Question 8
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bac6597415954ff1b4704259fc1cc8c4-problem-progress"></div>
<div class="problem">
<div>
<p>For Focus Generation 2, enter the True Positive (TP):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_bac6597415954ff1b4704259fc1cc8c4_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_bac6597415954ff1b4704259fc1cc8c4_2_1" id="input_bac6597415954ff1b4704259fc1cc8c4_2_1" data-input-id="bac6597415954ff1b4704259fc1cc8c4_2_1" value="" aria-describedby="status_bac6597415954ff1b4704259fc1cc8c4_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_bac6597415954ff1b4704259fc1cc8c4_2_1"/>
<span class="status unanswered" id="status_bac6597415954ff1b4704259fc1cc8c4_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_bac6597415954ff1b4704259fc1cc8c4_2_1" class="answer"/>
<div id="input_bac6597415954ff1b4704259fc1cc8c4_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<p>For Focus Generation 2, enter the False Positive (FP):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div id="formulaequationinput_bac6597415954ff1b4704259fc1cc8c4_3_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_bac6597415954ff1b4704259fc1cc8c4_3_1" id="input_bac6597415954ff1b4704259fc1cc8c4_3_1" data-input-id="bac6597415954ff1b4704259fc1cc8c4_3_1" value="" aria-describedby="status_bac6597415954ff1b4704259fc1cc8c4_3_1" size="20"/>
<span class="trailing_text" id="trailing_text_bac6597415954ff1b4704259fc1cc8c4_3_1"/>
<span class="status unanswered" id="status_bac6597415954ff1b4704259fc1cc8c4_3_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_bac6597415954ff1b4704259fc1cc8c4_3_1" class="answer"/>
<div id="input_bac6597415954ff1b4704259fc1cc8c4_3_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<p>For Focus Generation 2, enter the True Negative (TN):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div id="formulaequationinput_bac6597415954ff1b4704259fc1cc8c4_4_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_bac6597415954ff1b4704259fc1cc8c4_4_1" id="input_bac6597415954ff1b4704259fc1cc8c4_4_1" data-input-id="bac6597415954ff1b4704259fc1cc8c4_4_1" value="" aria-describedby="status_bac6597415954ff1b4704259fc1cc8c4_4_1" size="20"/>
<span class="trailing_text" id="trailing_text_bac6597415954ff1b4704259fc1cc8c4_4_1"/>
<span class="status unanswered" id="status_bac6597415954ff1b4704259fc1cc8c4_4_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_bac6597415954ff1b4704259fc1cc8c4_4_1" class="answer"/>
<div id="input_bac6597415954ff1b4704259fc1cc8c4_4_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<p>For Focus Generation 2, enter the False Negative (FN):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div id="formulaequationinput_bac6597415954ff1b4704259fc1cc8c4_5_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_bac6597415954ff1b4704259fc1cc8c4_5_1" id="input_bac6597415954ff1b4704259fc1cc8c4_5_1" data-input-id="bac6597415954ff1b4704259fc1cc8c4_5_1" value="" aria-describedby="status_bac6597415954ff1b4704259fc1cc8c4_5_1" size="20"/>
<span class="trailing_text" id="trailing_text_bac6597415954ff1b4704259fc1cc8c4_5_1"/>
<span class="status unanswered" id="status_bac6597415954ff1b4704259fc1cc8c4_5_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_bac6597415954ff1b4704259fc1cc8c4_5_1" class="answer"/>
<div id="input_bac6597415954ff1b4704259fc1cc8c4_5_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 8" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_bac6597415954ff1b4704259fc1cc8c4" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_bac6597415954ff1b4704259fc1cc8c4">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="bac6597415954ff1b4704259fc1cc8c4-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="bac6597415954ff1b4704259fc1cc8c4-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="bac6597415954ff1b4704259fc1cc8c4-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8c9d4f5600af477ab26fecb005ebb06e">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8c9d4f5600af477ab26fecb005ebb06e" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_8c9d4f5600af477ab26fecb005ebb06e" class="problems-wrapper" role="group"
aria-labelledby="8c9d4f5600af477ab26fecb005ebb06e-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8c9d4f5600af477ab26fecb005ebb06e" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@8c9d4f5600af477ab26fecb005ebb06e/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="8c9d4f5600af477ab26fecb005ebb06e-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8c9d4f5600af477ab26fecb005ebb06e-problem-progress" tabindex="-1">
Question 9
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8c9d4f5600af477ab26fecb005ebb06e-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_8c9d4f5600af477ab26fecb005ebb06e_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_8c9d4f5600af477ab26fecb005ebb06e_2_1" id="label_8c9d4f5600af477ab26fecb005ebb06e_2_1">For Focus Generation 2, calculate the sensitivity (enter your answer correct to 1 decimal place e.g 55.6):</label>
<input type="text" name="input_8c9d4f5600af477ab26fecb005ebb06e_2_1" id="input_8c9d4f5600af477ab26fecb005ebb06e_2_1" data-input-id="8c9d4f5600af477ab26fecb005ebb06e_2_1" value="" aria-describedby="trailing_text_8c9d4f5600af477ab26fecb005ebb06e_2_1 status_8c9d4f5600af477ab26fecb005ebb06e_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_8c9d4f5600af477ab26fecb005ebb06e_2_1">%</span>
<span class="status unanswered" id="status_8c9d4f5600af477ab26fecb005ebb06e_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_8c9d4f5600af477ab26fecb005ebb06e_2_1" class="answer"/>
<div id="input_8c9d4f5600af477ab26fecb005ebb06e_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_8c9d4f5600af477ab26fecb005ebb06e_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 9" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_8c9d4f5600af477ab26fecb005ebb06e" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_8c9d4f5600af477ab26fecb005ebb06e">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8c9d4f5600af477ab26fecb005ebb06e-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8c9d4f5600af477ab26fecb005ebb06e-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8c9d4f5600af477ab26fecb005ebb06e-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-3" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@24744123bf3843c29d949c08f4011185">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@24744123bf3843c29d949c08f4011185" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_24744123bf3843c29d949c08f4011185" class="problems-wrapper" role="group"
aria-labelledby="24744123bf3843c29d949c08f4011185-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@24744123bf3843c29d949c08f4011185" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@24744123bf3843c29d949c08f4011185/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="24744123bf3843c29d949c08f4011185-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@24744123bf3843c29d949c08f4011185-problem-progress" tabindex="-1">
Question 10
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@24744123bf3843c29d949c08f4011185-problem-progress"></div>
<div class="problem">
<div>
<p>For Focus Generation 2, calculate the specificity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_24744123bf3843c29d949c08f4011185_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_24744123bf3843c29d949c08f4011185_2_1" id="input_24744123bf3843c29d949c08f4011185_2_1" data-input-id="24744123bf3843c29d949c08f4011185_2_1" value="" aria-describedby="trailing_text_24744123bf3843c29d949c08f4011185_2_1 status_24744123bf3843c29d949c08f4011185_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_24744123bf3843c29d949c08f4011185_2_1">%</span>
<span class="status unanswered" id="status_24744123bf3843c29d949c08f4011185_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_24744123bf3843c29d949c08f4011185_2_1" class="answer"/>
<div id="input_24744123bf3843c29d949c08f4011185_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_24744123bf3843c29d949c08f4011185_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 10" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_24744123bf3843c29d949c08f4011185" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_24744123bf3843c29d949c08f4011185">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="24744123bf3843c29d949c08f4011185-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="24744123bf3843c29d949c08f4011185-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="24744123bf3843c29d949c08f4011185-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-block-type="vertical" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="VerticalStudentView" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@vertical+block@6353355e448c41f393390639f362c818" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<h2 class="hd hd-2 unit-title">Part IV</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@26738393cb52493ba67a053108fd16b2">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-block-type="html" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@26738393cb52493ba67a053108fd16b2" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p style="text-rendering: optimizeLegibility; margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; outline: 0px; font-stretch: inherit; font-size: 16px; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; vertical-align: baseline;"><span face="Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif" style="font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;">When you use the Kalon test kit 155 samples test positive, 143 of which were also positive by Western Blot. The remaining samples test negative but two of these samples are considered false negatives compared to Western Blot.</span><b> </b></p>
<p style="text-rendering: optimizeLegibility; margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; outline: 0px; font-stretch: inherit; font-size: 16px; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; vertical-align: baseline;"><span face="Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif" style="font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;"><b>Recall: First, you tested all of the blood samples with the Western Blot test. The test showed that 145 of the blood samples were positive and 82 were negative.</b></span></p>
<table style="width: 655px; line-height: 24.6px; overflow-wrap: normal;" border="1" height="216"><caption><b>True Characteristics in the Population</b></caption>
<tbody>
<tr><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Do not have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th></tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test positive for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">True Positive (TP):</td>
<td style="text-align: left;" nowrap="nowrap">False Positive (FP):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test negative for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">False Negative (FN):</td>
<td style="text-align: left;" nowrap="nowrap">True Negative (TN):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
</tr>
</tbody>
</table>
<p></p>
<p></p>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@81bebf09bbf34fae985dc84cbbc401b7">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@81bebf09bbf34fae985dc84cbbc401b7" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_81bebf09bbf34fae985dc84cbbc401b7" class="problems-wrapper" role="group"
aria-labelledby="81bebf09bbf34fae985dc84cbbc401b7-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@81bebf09bbf34fae985dc84cbbc401b7" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@81bebf09bbf34fae985dc84cbbc401b7/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="81bebf09bbf34fae985dc84cbbc401b7-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@81bebf09bbf34fae985dc84cbbc401b7-problem-progress" tabindex="-1">
Question 11
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@81bebf09bbf34fae985dc84cbbc401b7-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_81bebf09bbf34fae985dc84cbbc401b7_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_81bebf09bbf34fae985dc84cbbc401b7_2_1" id="label_81bebf09bbf34fae985dc84cbbc401b7_2_1">For Kalon, enter the True Positive (TP):</label>
<input type="text" name="input_81bebf09bbf34fae985dc84cbbc401b7_2_1" id="input_81bebf09bbf34fae985dc84cbbc401b7_2_1" data-input-id="81bebf09bbf34fae985dc84cbbc401b7_2_1" value="" aria-describedby="status_81bebf09bbf34fae985dc84cbbc401b7_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_81bebf09bbf34fae985dc84cbbc401b7_2_1"/>
<span class="status unanswered" id="status_81bebf09bbf34fae985dc84cbbc401b7_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_81bebf09bbf34fae985dc84cbbc401b7_2_1" class="answer"/>
<div id="input_81bebf09bbf34fae985dc84cbbc401b7_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div id="formulaequationinput_81bebf09bbf34fae985dc84cbbc401b7_3_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_81bebf09bbf34fae985dc84cbbc401b7_3_1" id="label_81bebf09bbf34fae985dc84cbbc401b7_3_1">For Kalon, enter the False Positive (FP):</label>
<input type="text" name="input_81bebf09bbf34fae985dc84cbbc401b7_3_1" id="input_81bebf09bbf34fae985dc84cbbc401b7_3_1" data-input-id="81bebf09bbf34fae985dc84cbbc401b7_3_1" value="" aria-describedby="status_81bebf09bbf34fae985dc84cbbc401b7_3_1" size="20"/>
<span class="trailing_text" id="trailing_text_81bebf09bbf34fae985dc84cbbc401b7_3_1"/>
<span class="status unanswered" id="status_81bebf09bbf34fae985dc84cbbc401b7_3_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_81bebf09bbf34fae985dc84cbbc401b7_3_1" class="answer"/>
<div id="input_81bebf09bbf34fae985dc84cbbc401b7_3_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div id="formulaequationinput_81bebf09bbf34fae985dc84cbbc401b7_4_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_81bebf09bbf34fae985dc84cbbc401b7_4_1" id="label_81bebf09bbf34fae985dc84cbbc401b7_4_1">For Kalon, enter the True Negative (TN):</label>
<input type="text" name="input_81bebf09bbf34fae985dc84cbbc401b7_4_1" id="input_81bebf09bbf34fae985dc84cbbc401b7_4_1" data-input-id="81bebf09bbf34fae985dc84cbbc401b7_4_1" value="" aria-describedby="status_81bebf09bbf34fae985dc84cbbc401b7_4_1" size="20"/>
<span class="trailing_text" id="trailing_text_81bebf09bbf34fae985dc84cbbc401b7_4_1"/>
<span class="status unanswered" id="status_81bebf09bbf34fae985dc84cbbc401b7_4_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_81bebf09bbf34fae985dc84cbbc401b7_4_1" class="answer"/>
<div id="input_81bebf09bbf34fae985dc84cbbc401b7_4_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div id="formulaequationinput_81bebf09bbf34fae985dc84cbbc401b7_5_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_81bebf09bbf34fae985dc84cbbc401b7_5_1" id="label_81bebf09bbf34fae985dc84cbbc401b7_5_1">For Kalon, enter the False Negative (FN):</label>
<input type="text" name="input_81bebf09bbf34fae985dc84cbbc401b7_5_1" id="input_81bebf09bbf34fae985dc84cbbc401b7_5_1" data-input-id="81bebf09bbf34fae985dc84cbbc401b7_5_1" value="" aria-describedby="status_81bebf09bbf34fae985dc84cbbc401b7_5_1" size="20"/>
<span class="trailing_text" id="trailing_text_81bebf09bbf34fae985dc84cbbc401b7_5_1"/>
<span class="status unanswered" id="status_81bebf09bbf34fae985dc84cbbc401b7_5_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_81bebf09bbf34fae985dc84cbbc401b7_5_1" class="answer"/>
<div id="input_81bebf09bbf34fae985dc84cbbc401b7_5_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 11" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_81bebf09bbf34fae985dc84cbbc401b7" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_81bebf09bbf34fae985dc84cbbc401b7">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="81bebf09bbf34fae985dc84cbbc401b7-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="81bebf09bbf34fae985dc84cbbc401b7-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="81bebf09bbf34fae985dc84cbbc401b7-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7aba6482ade149cca7f6d38bc91f415c">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7aba6482ade149cca7f6d38bc91f415c" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_7aba6482ade149cca7f6d38bc91f415c" class="problems-wrapper" role="group"
aria-labelledby="7aba6482ade149cca7f6d38bc91f415c-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7aba6482ade149cca7f6d38bc91f415c" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@7aba6482ade149cca7f6d38bc91f415c/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="7aba6482ade149cca7f6d38bc91f415c-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7aba6482ade149cca7f6d38bc91f415c-problem-progress" tabindex="-1">
Question 12
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7aba6482ade149cca7f6d38bc91f415c-problem-progress"></div>
<div class="problem">
<div>
<p>For Kalon, calculate the sensitivity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_7aba6482ade149cca7f6d38bc91f415c_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_7aba6482ade149cca7f6d38bc91f415c_2_1" id="input_7aba6482ade149cca7f6d38bc91f415c_2_1" data-input-id="7aba6482ade149cca7f6d38bc91f415c_2_1" value="" aria-describedby="trailing_text_7aba6482ade149cca7f6d38bc91f415c_2_1 status_7aba6482ade149cca7f6d38bc91f415c_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_7aba6482ade149cca7f6d38bc91f415c_2_1">%</span>
<span class="status unanswered" id="status_7aba6482ade149cca7f6d38bc91f415c_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7aba6482ade149cca7f6d38bc91f415c_2_1" class="answer"/>
<div id="input_7aba6482ade149cca7f6d38bc91f415c_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_7aba6482ade149cca7f6d38bc91f415c_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 12" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_7aba6482ade149cca7f6d38bc91f415c" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_7aba6482ade149cca7f6d38bc91f415c">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7aba6482ade149cca7f6d38bc91f415c-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7aba6482ade149cca7f6d38bc91f415c-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7aba6482ade149cca7f6d38bc91f415c-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-3" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bcaaa9c3ae4d496ead4d1d2353659852">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bcaaa9c3ae4d496ead4d1d2353659852" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_bcaaa9c3ae4d496ead4d1d2353659852" class="problems-wrapper" role="group"
aria-labelledby="bcaaa9c3ae4d496ead4d1d2353659852-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bcaaa9c3ae4d496ead4d1d2353659852" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@bcaaa9c3ae4d496ead4d1d2353659852/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="bcaaa9c3ae4d496ead4d1d2353659852-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bcaaa9c3ae4d496ead4d1d2353659852-problem-progress" tabindex="-1">
Question 13
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@bcaaa9c3ae4d496ead4d1d2353659852-problem-progress"></div>
<div class="problem">
<div>
<p>For Kalon, calculate the specificity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_bcaaa9c3ae4d496ead4d1d2353659852_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_bcaaa9c3ae4d496ead4d1d2353659852_2_1" id="input_bcaaa9c3ae4d496ead4d1d2353659852_2_1" data-input-id="bcaaa9c3ae4d496ead4d1d2353659852_2_1" value="" aria-describedby="trailing_text_bcaaa9c3ae4d496ead4d1d2353659852_2_1 status_bcaaa9c3ae4d496ead4d1d2353659852_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_bcaaa9c3ae4d496ead4d1d2353659852_2_1">%</span>
<span class="status unanswered" id="status_bcaaa9c3ae4d496ead4d1d2353659852_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_bcaaa9c3ae4d496ead4d1d2353659852_2_1" class="answer"/>
<div id="input_bcaaa9c3ae4d496ead4d1d2353659852_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_bcaaa9c3ae4d496ead4d1d2353659852_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 13" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_bcaaa9c3ae4d496ead4d1d2353659852" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_bcaaa9c3ae4d496ead4d1d2353659852">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="bcaaa9c3ae4d496ead4d1d2353659852-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="bcaaa9c3ae4d496ead4d1d2353659852-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="bcaaa9c3ae4d496ead4d1d2353659852-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-block-type="vertical" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="VerticalStudentView" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@vertical+block@cce7d1173da74bcc9d3b9217b672ba93" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<h2 class="hd hd-2 unit-title">Part V</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@54d62cc9648c44a1b9ae5d10b5780c2b">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-block-type="html" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@html+block@54d62cc9648c44a1b9ae5d10b5780c2b" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p style="text-rendering: optimizeLegibility; margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; outline: 0px; font-stretch: inherit; font-size: 16px; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; vertical-align: baseline;"><span face="Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif" style="font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;">When testing with the Biokit test you find that 123 of the samples tested negative and the remaining 104 test positive. 96 of the 104 Biokit positives are true positives while 74 out of the 123 Biokit negatives are true negatives. </span></p>
<p style="text-rendering: optimizeLegibility; margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; outline: 0px; font-stretch: inherit; font-size: 16px; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif; vertical-align: baseline;"><strong><span face="Open Sans, Helvetica Neue, Helvetica, Arial, sans-serif" style="font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;">Recall: First, you tested all of the blood samples with the Western Blot test. The test showed that 145 of the blood samples were positive and 82 were negative.</span></strong></p>
<table style="width: 655px; line-height: 24.6px; overflow-wrap: normal;" border="1" height="216"><caption><b>True Characteristics in the Population</b></caption>
<tbody>
<tr><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap">Do not have the disease</th><th scope="col" style="width: 120px; text-align: center;" nowrap="nowrap"></th></tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test positive for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">True Positive (TP):</td>
<td style="text-align: left;" nowrap="nowrap">False Positive (FP):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;" nowrap="nowrap"><b>Test negative for the disease</b></td>
<td style="text-align: left;" nowrap="nowrap">False Negative (FN):</td>
<td style="text-align: left;" nowrap="nowrap">True Negative (TN):</td>
<td style="text-align: left;"></td>
</tr>
<tr>
<td bgcolor="#EEEEEE" style="text-align: center;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
<td style="text-align: right;"></td>
</tr>
</tbody>
</table>
<p></p>
<p></p>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7e2566ef9eb24053afa2e80049b97878">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7e2566ef9eb24053afa2e80049b97878" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_7e2566ef9eb24053afa2e80049b97878" class="problems-wrapper" role="group"
aria-labelledby="7e2566ef9eb24053afa2e80049b97878-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7e2566ef9eb24053afa2e80049b97878" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@7e2566ef9eb24053afa2e80049b97878/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="7e2566ef9eb24053afa2e80049b97878-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7e2566ef9eb24053afa2e80049b97878-problem-progress" tabindex="-1">
Question 14
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@7e2566ef9eb24053afa2e80049b97878-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_7e2566ef9eb24053afa2e80049b97878_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_7e2566ef9eb24053afa2e80049b97878_2_1" id="label_7e2566ef9eb24053afa2e80049b97878_2_1">For Biokit Rapid Test, enter the True Positive (TP):</label>
<input type="text" name="input_7e2566ef9eb24053afa2e80049b97878_2_1" id="input_7e2566ef9eb24053afa2e80049b97878_2_1" data-input-id="7e2566ef9eb24053afa2e80049b97878_2_1" value="" aria-describedby="status_7e2566ef9eb24053afa2e80049b97878_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_7e2566ef9eb24053afa2e80049b97878_2_1"/>
<span class="status unanswered" id="status_7e2566ef9eb24053afa2e80049b97878_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7e2566ef9eb24053afa2e80049b97878_2_1" class="answer"/>
<div id="input_7e2566ef9eb24053afa2e80049b97878_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div id="formulaequationinput_7e2566ef9eb24053afa2e80049b97878_3_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_7e2566ef9eb24053afa2e80049b97878_3_1" id="label_7e2566ef9eb24053afa2e80049b97878_3_1">For Biokit Rapid Test, enter the False Positive (FP):</label>
<input type="text" name="input_7e2566ef9eb24053afa2e80049b97878_3_1" id="input_7e2566ef9eb24053afa2e80049b97878_3_1" data-input-id="7e2566ef9eb24053afa2e80049b97878_3_1" value="" aria-describedby="status_7e2566ef9eb24053afa2e80049b97878_3_1" size="20"/>
<span class="trailing_text" id="trailing_text_7e2566ef9eb24053afa2e80049b97878_3_1"/>
<span class="status unanswered" id="status_7e2566ef9eb24053afa2e80049b97878_3_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7e2566ef9eb24053afa2e80049b97878_3_1" class="answer"/>
<div id="input_7e2566ef9eb24053afa2e80049b97878_3_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div id="formulaequationinput_7e2566ef9eb24053afa2e80049b97878_4_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_7e2566ef9eb24053afa2e80049b97878_4_1" id="label_7e2566ef9eb24053afa2e80049b97878_4_1">For Biokit Rapid Test, enter the True Negative (TN):</label>
<input type="text" name="input_7e2566ef9eb24053afa2e80049b97878_4_1" id="input_7e2566ef9eb24053afa2e80049b97878_4_1" data-input-id="7e2566ef9eb24053afa2e80049b97878_4_1" value="" aria-describedby="status_7e2566ef9eb24053afa2e80049b97878_4_1" size="20"/>
<span class="trailing_text" id="trailing_text_7e2566ef9eb24053afa2e80049b97878_4_1"/>
<span class="status unanswered" id="status_7e2566ef9eb24053afa2e80049b97878_4_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7e2566ef9eb24053afa2e80049b97878_4_1" class="answer"/>
<div id="input_7e2566ef9eb24053afa2e80049b97878_4_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div id="formulaequationinput_7e2566ef9eb24053afa2e80049b97878_5_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_7e2566ef9eb24053afa2e80049b97878_5_1" id="label_7e2566ef9eb24053afa2e80049b97878_5_1">For Biokit Rapid Test, enter the False Negative (FN):</label>
<input type="text" name="input_7e2566ef9eb24053afa2e80049b97878_5_1" id="input_7e2566ef9eb24053afa2e80049b97878_5_1" data-input-id="7e2566ef9eb24053afa2e80049b97878_5_1" value="" aria-describedby="status_7e2566ef9eb24053afa2e80049b97878_5_1" size="20"/>
<span class="trailing_text" id="trailing_text_7e2566ef9eb24053afa2e80049b97878_5_1"/>
<span class="status unanswered" id="status_7e2566ef9eb24053afa2e80049b97878_5_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7e2566ef9eb24053afa2e80049b97878_5_1" class="answer"/>
<div id="input_7e2566ef9eb24053afa2e80049b97878_5_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 14" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_7e2566ef9eb24053afa2e80049b97878" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_7e2566ef9eb24053afa2e80049b97878">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7e2566ef9eb24053afa2e80049b97878-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7e2566ef9eb24053afa2e80049b97878-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7e2566ef9eb24053afa2e80049b97878-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8331f910258f42a3904802b3b2ae1b6e">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8331f910258f42a3904802b3b2ae1b6e" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_8331f910258f42a3904802b3b2ae1b6e" class="problems-wrapper" role="group"
aria-labelledby="8331f910258f42a3904802b3b2ae1b6e-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8331f910258f42a3904802b3b2ae1b6e" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@8331f910258f42a3904802b3b2ae1b6e/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="8331f910258f42a3904802b3b2ae1b6e-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8331f910258f42a3904802b3b2ae1b6e-problem-progress" tabindex="-1">
Question 15
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@8331f910258f42a3904802b3b2ae1b6e-problem-progress"></div>
<div class="problem">
<div>
<p>For Biokit Rapid Test, calculate the sensitivity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_8331f910258f42a3904802b3b2ae1b6e_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_8331f910258f42a3904802b3b2ae1b6e_2_1" id="input_8331f910258f42a3904802b3b2ae1b6e_2_1" data-input-id="8331f910258f42a3904802b3b2ae1b6e_2_1" value="" aria-describedby="trailing_text_8331f910258f42a3904802b3b2ae1b6e_2_1 status_8331f910258f42a3904802b3b2ae1b6e_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_8331f910258f42a3904802b3b2ae1b6e_2_1">%</span>
<span class="status unanswered" id="status_8331f910258f42a3904802b3b2ae1b6e_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_8331f910258f42a3904802b3b2ae1b6e_2_1" class="answer"/>
<div id="input_8331f910258f42a3904802b3b2ae1b6e_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_8331f910258f42a3904802b3b2ae1b6e_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 15" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_8331f910258f42a3904802b3b2ae1b6e" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_8331f910258f42a3904802b3b2ae1b6e">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8331f910258f42a3904802b3b2ae1b6e-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8331f910258f42a3904802b3b2ae1b6e-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="8331f910258f42a3904802b3b2ae1b6e-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-3" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@29077e4cec9c499785db262adb4555c4">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@29077e4cec9c499785db262adb4555c4" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_29077e4cec9c499785db262adb4555c4" class="problems-wrapper" role="group"
aria-labelledby="29077e4cec9c499785db262adb4555c4-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@29077e4cec9c499785db262adb4555c4" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@29077e4cec9c499785db262adb4555c4/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="29077e4cec9c499785db262adb4555c4-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@29077e4cec9c499785db262adb4555c4-problem-progress" tabindex="-1">
Question 16
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@29077e4cec9c499785db262adb4555c4-problem-progress"></div>
<div class="problem">
<div>
<p>For Biokit Rapid Test, calculate the specificity (enter your answer correct to 1 decimal place e.g 55.6):</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_29077e4cec9c499785db262adb4555c4_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_29077e4cec9c499785db262adb4555c4_2_1" id="input_29077e4cec9c499785db262adb4555c4_2_1" data-input-id="29077e4cec9c499785db262adb4555c4_2_1" value="" aria-describedby="trailing_text_29077e4cec9c499785db262adb4555c4_2_1 status_29077e4cec9c499785db262adb4555c4_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_29077e4cec9c499785db262adb4555c4_2_1">%</span>
<span class="status unanswered" id="status_29077e4cec9c499785db262adb4555c4_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_29077e4cec9c499785db262adb4555c4_2_1" class="answer"/>
<div id="input_29077e4cec9c499785db262adb4555c4_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
<div class="solution-span">
<span id="solution_29077e4cec9c499785db262adb4555c4_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 16" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_29077e4cec9c499785db262adb4555c4" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_29077e4cec9c499785db262adb4555c4">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="29077e4cec9c499785db262adb4555c4-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="29077e4cec9c499785db262adb4555c4-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="29077e4cec9c499785db262adb4555c4-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-block-type="vertical" data-has-score="False" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="VerticalStudentView" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@vertical+block@384ae35721de4c908b76bed40b4a9845" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<h2 class="hd hd-2 unit-title">Part VI</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@78431ec287624d9fb95c1b15bfc41e8f">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@78431ec287624d9fb95c1b15bfc41e8f" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_78431ec287624d9fb95c1b15bfc41e8f" class="problems-wrapper" role="group"
aria-labelledby="78431ec287624d9fb95c1b15bfc41e8f-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@78431ec287624d9fb95c1b15bfc41e8f" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@78431ec287624d9fb95c1b15bfc41e8f/handler/xmodule_handler"
data-problem-score="0.0"
data-problem-total-possible="1.0"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="78431ec287624d9fb95c1b15bfc41e8f-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@78431ec287624d9fb95c1b15bfc41e8f-problem-progress" tabindex="-1">
Question 17
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@78431ec287624d9fb95c1b15bfc41e8f-problem-progress"></div>
<div class="problem">
<div>
<p>Which test kit would you use in your evaluation study?</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_78431ec287624d9fb95c1b15bfc41e8f_2_1">
<fieldset aria-describedby="status_78431ec287624d9fb95c1b15bfc41e8f_2_1">
<div class="field">
<input type="radio" name="input_78431ec287624d9fb95c1b15bfc41e8f_2_1" id="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="78431ec287624d9fb95c1b15bfc41e8f_2_1-choice_0-label" for="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_78431ec287624d9fb95c1b15bfc41e8f_2_1"> Focus Generation 1
</label>
</div>
<div class="field">
<input type="radio" name="input_78431ec287624d9fb95c1b15bfc41e8f_2_1" id="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="78431ec287624d9fb95c1b15bfc41e8f_2_1-choice_1-label" for="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_78431ec287624d9fb95c1b15bfc41e8f_2_1"> Focus Generation 2
</label>
</div>
<div class="field">
<input type="radio" name="input_78431ec287624d9fb95c1b15bfc41e8f_2_1" id="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="78431ec287624d9fb95c1b15bfc41e8f_2_1-choice_2-label" for="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_78431ec287624d9fb95c1b15bfc41e8f_2_1"> Kalon
</label>
</div>
<div class="field">
<input type="radio" name="input_78431ec287624d9fb95c1b15bfc41e8f_2_1" id="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_3" class="field-input input-radio" value="choice_3"/><label id="78431ec287624d9fb95c1b15bfc41e8f_2_1-choice_3-label" for="input_78431ec287624d9fb95c1b15bfc41e8f_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_78431ec287624d9fb95c1b15bfc41e8f_2_1"> Biokit Rapid Test
</label>
</div>
<span id="answer_78431ec287624d9fb95c1b15bfc41e8f_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_78431ec287624d9fb95c1b15bfc41e8f_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div>
<div class="solution-span">
<span id="solution_78431ec287624d9fb95c1b15bfc41e8f_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 17" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_78431ec287624d9fb95c1b15bfc41e8f" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_78431ec287624d9fb95c1b15bfc41e8f">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="78431ec287624d9fb95c1b15bfc41e8f-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="78431ec287624d9fb95c1b15bfc41e8f-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="78431ec287624d9fb95c1b15bfc41e8f-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@f7a128db583c4179b67730fa5756ddeb">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-block-type="problem" data-has-score="True" data-runtime-class="LmsRuntime" data-runtime-version="1" data-init="XBlockToXModuleShim" data-request-token="b2b2d3dc448c11efaf4b16ffcfe1c469" data-graded="True" data-usage-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@f7a128db583c4179b67730fa5756ddeb" data-course-id="course-v1:MITx+JPAL350x+3T2020">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_f7a128db583c4179b67730fa5756ddeb" class="problems-wrapper" role="group"
aria-labelledby="f7a128db583c4179b67730fa5756ddeb-problem-title"
data-problem-id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@f7a128db583c4179b67730fa5756ddeb" data-url="/courses/course-v1:MITx+JPAL350x+3T2020/xblock/block-v1:MITx+JPAL350x+3T2020+type@problem+block@f7a128db583c4179b67730fa5756ddeb/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="f7a128db583c4179b67730fa5756ddeb-problem-title" aria-describedby="block-v1:MITx+JPAL350x+3T2020+type@problem+block@f7a128db583c4179b67730fa5756ddeb-problem-progress" tabindex="-1">
Question 18
</h3>
<div class="problem-progress" id="block-v1:MITx+JPAL350x+3T2020+type@problem+block@f7a128db583c4179b67730fa5756ddeb-problem-progress"></div>
<div class="problem">
<div>
<p>Why do you think there is such a big variation in your sensitivity and specificity versus those claimed by the manufacturer?</p>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="inputtype_f7a128db583c4179b67730fa5756ddeb_2_1" class=" capa_inputtype textline">
<div class="unanswered ">
<input type="text" name="input_f7a128db583c4179b67730fa5756ddeb_2_1" id="input_f7a128db583c4179b67730fa5756ddeb_2_1" aria-describedby="status_f7a128db583c4179b67730fa5756ddeb_2_1" value="" size="70"/>
<span class="trailing_text" id="trailing_text_f7a128db583c4179b67730fa5756ddeb_2_1"/>
<span class="status unanswered" id="status_f7a128db583c4179b67730fa5756ddeb_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_f7a128db583c4179b67730fa5756ddeb_2_1" class="answer"/>
</div>
</div></div>
<div class="solution-span">
<span id="solution_f7a128db583c4179b67730fa5756ddeb_solution_1"/>
</div></div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 18" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_f7a128db583c4179b67730fa5756ddeb" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_f7a128db583c4179b67730fa5756ddeb">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="f7a128db583c4179b67730fa5756ddeb-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="f7a128db583c4179b67730fa5756ddeb-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="f7a128db583c4179b67730fa5756ddeb-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved