Which of the Following Statements About Screening Tests Are Correct

Multiple Choice

Which of the following statements about screening tests are correct? (Select all that apply)

A) The sensitivity of a test is the proportion of all persons who have the disease who test positive
B) The predictive value of a negative test (or negative predictive value, NPV) is not affected by the sensitivity of the test
C) The prevalence of the disease of interest does not affect the accuracy of a screening test
D) The prevalence of the disease of interest does not affect the performance of a screening test
E) The specificity of a test is the proportion of all those who do not have the disease who test positive
F) Across‐sectionalsurveyisthebeststudydesigntoassesstestaccuracy