This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Ability of a screening test to diagnose true positive refers to: March 2010 
Select and explain. 
A. Relative risk, B. Sensitivity, C. Specificity, D. Attributable risk
B: Sensitivity
Answer: B: Sensitivity 
Explanation: Ans. B: Sensitivity