Which one of the following would be most likely to establish that a test is grounded in psychological theory?
A) the correlation between test score and external criteria
B) the correlation between the test scores of the same people at two different points in time
C) a high coefficient alpha from a test of internal consistency
D) evidence of validity based on the test's relationship with other constructs

Question

Quizplus · Accepted Answer

Evidence of validity based on the test's relationship with other constructs is the most likely way to establish that a test is grounded in psychological theory. This involves demonstrating that the test scores are related to other constructs or variables in a way that is consistent with the underlying theory. This approach is commonly used to establish construct validity, which is the extent to which a test measures the psychological construct or attribute it was designed to measure. A high coefficient alpha from a test of internal consistency (C) would suggest that the test items are measuring a single construct consistently, but this alone does not establish that the construct is grounded in psychological theory. The correlation between test scores and external criteria (A) may provide some evidence of predictive validity, but again, this alone may not establish that the construct is grounded in psychological theory. The correlation between the test scores of the same people at two different points in time (B) may provide evidence of test-retest reliability, but this does not directly address whether the test is grounded in psychological theory.

Which One of the Following Would Be Most Likely to Establish