This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Screening, Subject name: Social & Preventive Medicine
[{'content': 'The critieria for validity of a screening test are- \nSelect and explain. \nA. Accuracy, B. Predictability, C. Sensitivity & specificity, D. Cost effectiveness', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref: Parks 23rd edition pg 138 Validity has 2 components : sensitivity and specificity. Validity (Accuracy) The term validity refers to what extend the test accurately measures what it purpos to measure. Accuracy refers to the closeness with which measured values agree with "true" values.', 'role': 'assistant'}]