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2- 200 sample were enrolled in a study to evaluate the accuracy of a new test Test Positive Test Negative Disease Positive 80 20 Calculate the Sensitivity and specificity Is this a screening test or a confirmatory test? Why? Disease Negative 5 95

2- 200 sample were enrolled in a study to evaluate the accuracy of a new test Test Positive Test Negative Disease Positive 80 20 Calculate the Sensitivity and specificity Is this a screening test or a confirmatory test? Why? Disease Negative 5 95

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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**Study on Test Accuracy** In a study, 200 samples were enrolled to evaluate the accuracy of a new test. The results are summarized in the table below: | | Disease Positive | Disease Negative | |---------------------|------------------|------------------| | **Test Positive** | 80 | 5 | | **Test Negative** | 20 | 95 | **Tasks:** 1. **Calculate the Sensitivity and Specificity:** - **Sensitivity** is the percentage of true positives correctly identified by the test. - **Specificity** is the percentage of true negatives correctly identified by the test. 2. **Determine if this is a Screening Test or a Confirmatory Test:** - Consider factors like sensitivity, specificity, and the context in which the test is used to decide whether it serves best as a screening or a confirmatory test. Provide a rationale for your decision.
Transcribed Image Text:**Study on Test Accuracy** In a study, 200 samples were enrolled to evaluate the accuracy of a new test. The results are summarized in the table below: | | Disease Positive | Disease Negative | |---------------------|------------------|------------------| | **Test Positive** | 80 | 5 | | **Test Negative** | 20 | 95 | **Tasks:** 1. **Calculate the Sensitivity and Specificity:** - **Sensitivity** is the percentage of true positives correctly identified by the test. - **Specificity** is the percentage of true negatives correctly identified by the test. 2. **Determine if this is a Screening Test or a Confirmatory Test:** - Consider factors like sensitivity, specificity, and the context in which the test is used to decide whether it serves best as a screening or a confirmatory test. Provide a rationale for your decision.
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