A test gives 60 true positives, 30 false positives, 20 false negatives and 70 true negatives. What is its sensitivity?
Answer and explanation
Correct answer: D. 75%
- Step 1: Sensitivity = TP / (TP + FN) = 60 / 80.
- Step 2: This equals 75%.
Answer
75%.
Why not the others: The other percentages are the other test characteristics (sensitivity, specificity, positive and negative predictive value), which use different denominators.
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