A validity coefficient is best illustrated by the correlation between:

Question

Quizplus · Accepted Answer

A validity coefficient is the correlation between a test score and performance on a criterion measure. Therefore, the best choice to illustrate a validity coefficient is the correlation between test scores and performance on a criterion (option C). Option A describes the reliability coefficient, which is the correlation between test scores on two different occasions. Option B describes the correlation between scores on two different tests, which is not necessarily an indicator of validity. Option D is the item-total correlation, which is used to assess the quality of individual items on a test, but is not directly related to validity.

A Validity Coefficient Is Best Illustrated by the Correlation Between