Specificity of a screening test measures: (A) False positives, (B) True positives, (C) False negatives, (D) True negatives
Answer is D. Specificity in the above image = d/(b+d)x100 Specificity is defined as the ability of a test to identify correctly those who do not have the disease, that is, "true-negatives". Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 152