To test his measure, Dr. Sheffield gives his measure to a group of people in Gamblers Anonymous (GA) and another group in Alcoholics Anonymous (AA). He finds that people in the GA group have higher scores on his new measure than people in the AA group. Why did Dr. Sheffield do this?a. to obtain evidence for face validity b. to obtain evidence for convergent validity c. to obtain evidence for criterion validity d. to obtain evidence for content validity

C, to obtain evidence for criterion validity.

Explanation:

Dr. Sheffield who happened to be a clinical psychologist who have His area of specialty in treating pathological gambling.

Pathological gambling can be said to a situation when one finds it very hard to resist or avoid the urge or impulses to gamble.

Dr Sheffield created a measure of pathological gambling. In the measure there are 15 questions, which requires 20 minutes to complete.

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explanation:

answercobra of 1985;