Investigates the importance of using levels of intellectual ability as a control variable in studies of nonintellectual factors in academic achievement and determines the utility of the Edwards Personal Preference Schedule as a supplement to academic aptitude test scores in the prediction of success in college. (Author/DEP)

Grades in a college freshman course in finite mathematics were predicted from IQ, high school math grades, college board scores, and high school class ranks. The squared multiple correlation for the full model was .611. (JKS)