Posted: July 24th, 2017

Investigators are studying the use of a new laboratory test to identify patients with a particular disease. The table below summarizes the results of initial research involving 200 subjects.

Investigators are studying the use of a new
laboratory test to identify patients with a
particular disease. The table below summarizes
the results of initial research involving 200
subjects.
Disease
Present Absent
Test Result Positive 60 40 100
Negative 20 80 100
80 120 200
Which of the following is the approximate
sensitivity of a positive test result?
(A) 0.30
(B) 0.33
(C) 0.60
(D) 0.67
(E) 0.75