Question

A new screening test for Lyme disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Three hundred people are screened at a clinic during the first year the new test is implemented. (Assume the true prevalence of Lyme disease among clinic attendees is 10%.) Calculate the following values:The predictive value of a positive test is:

A. 33.0%
B. 18.2%
C. 94.0%
D. 22.2%
E. 6.0%

Answer 1

The predictive value of a positive test is:

B. 18.2%

Step-by-step explanation: