Intelligence, "Big Five" personality traits, and work drive as predictors of course grade

General intelligence, Big Five personality constructs, and a measure of work drive were studied in relation to course grade in an undergraduate psychology course taught by the same professor for 175 students over a 5-year period. Using a hierarchical multiple regression analysis, general intelligence accounted significantly for 16% of the variance in course grade; Big Five personality measures accounted significantly for an additional 7% of the variance; and work drive accounted significantly for an additional 4% of the variance. However, when work drive was entered before the Big Five variables, the Big Five variables did not add significantly (either as a set or individually) to the prediction of course grade. Results were discussed in terms of the importance of personality constructs in uniquely predicting academic performance and the need for additional study using more diverse predictors and aggregated criterion measures.