Biostatistics & Research · single question
What does 'sensitivity' of a diagnostic test refer to?
Show answer and explanation
Correct answer: D. Ability to detect disease in those who have it
Sensitivity = the test's ability to correctly identify those who HAVE disease (true positive rate). Formula: TP/(TP+FN).
- A. ❌ Proportion of true negatives among all negatives is Negative Predictive Value (NPV).
- B. ❌ Identifying healthy patients as negative is specificity.
- C. ❌ Sensitivity is a statistical diagnostic measure, not pathogen-specific.
- D. ✅ CORRECT – Sensitivity = detecting disease in those who truly have it (TPR).
Practice Biostatistics & Research questions Biostatistics & Research study notes