Epiville

Quizzes

Quiz 3, Module Screening

3. Which is the best interpretation of the sensitivity of SussStat?

  1. The probability that SussStat correctly categorized an individual as not having Susser Syndrome.
  2. Of those who tested positive on the SussStat test, the percent of persons that developed Susser Syndrome.
  3. The probability that SussStat correctly categorized an individual as having Susser Syndrome.
Answer (a) — incorrect: This is an interpretation of specificity.
Answer (b) — incorrect: This is the PPV of the test, PPV = TP/(TP+FP). The denominator of sensitivity is not those who tested positive, but rather those who truly have the disease.
Answer (c) — correct: Sensitivity = TP/(TP+FN).