When professionals are concerned with correctly classifying diagnostic groups including brain-injured,psychiatric,and normal adults,the type of validity that is of prime concern is called:

Question

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Criterion validity is concerned with how well a test or measurement tool can predict or correlate with an external criterion or standard, in this case correctly classifying diagnostic groups. This is the most relevant type of validity for this situation. Construct validity refers to whether a test measures what it claims to measure, content validity refers to how well a test covers all aspects of what it is supposed to measure, and concurrent validity refers to how well a test correlates with a criterion measured at the same time. While these types of validity may also be important in other situations, they are not as relevant for correctly classifying diagnostic groups.

When Professionals Are Concerned with Correctly Classifying Diagnostic Groups Including