Specificity of a screening test measures aEUR': (A) True positives, (B) False positives, (C) False negatives, (D) True negatives
Answer is D. True negatives Repeat from May 06 Sensitivity is the ability of test to identify correctly all those who have the disease, i.e, 'true positives'. Specificity is the ability of a test to identify correctly those who do not have the disease, i.e. 'true negatives'.