Question Detail

BIO 201 Objective Question

Question

Assuming two independent parallel diagnostic tests have sensitivities of Se1 and Se2, what is the combined sensitivity (Se_total)?
Options
A Se_total = 1 - [(1 - Se1) * (1 - Se2)]
Correct Answer
B Se_total = Se1 * Se2
C Se_total = (Se1 + Se2) / 2
D Se_total = Se1 + Se2 - 1
Correct Answer

Option A is the correct answer.

Detailed Explanation

The probability of at least one test detecting the disease is 1 minus the probability that both tests fail to detect it.

Hint

No hint available

Question Info