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
[{'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 measures which it purports to measure (adequacy of measurement)\nValidity has 2 components:\n\n– Sensitivity\n– Specificity\n\nTypes of Validity:\n\n– Conclusion validity: Defines if there is a relationship between 2 variables\n– Internal validity: Assuming relationship between 2 variables, defines if it is causal\n1. Is free of bias\n2. Valid conclusions can be drawn for individuals in a sample\n– Construct validity: Assuming causal relationship between 2 variables, defines if our theory is best to our constructs\n– External validity: Assuming causal relationship between 2 variables, defines if our theory can be generalized to\xa0the broader population\n– Concurrent validity: Refers to the degree of correlation with other measures of the same construct measured at the\xa0same time\n– Face (Logical) validity: Relevance of a measurement appear obvious\n– Content validity: Measurement of all variable components\n– Consensual validity: If no. of experts agree to a parameter\nCriterion validity: If compared with a reference or gold standard.\n1. Is best measure of validity\n2. Usually expressed as sensitivity & specificity\n– Discriminant validity: If not showing strong correlation between 2 variables.', 'role': 'assistant'}]