This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
[{'content': 'The parameters of sensitivity and specificity are used for assessing- \nSelect and explain. \nA. Criterion validity, B. Construct validity, C. Discriminant validity, D. Content validity', 'role': 'user'}, {'content': "Answer: A \nExplanation: - validity refers to what extent the test accurately measures which it purpos to measure. - it has two components ; sensitivity specificity. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:138", 'role': 'assistant'}]