This study investigated the relationship of certain personality factors, as measured by the OPI, to academic achievement in general psychology. It was predicted that Thinking Introversion and Theoretical Orientation would correlate significantly and positively and that Practical Outlook would correlate significantly and negatively with total grade points. Intercorrelations among factors provided substantial support for Hypothesis 1 but indicated only a trend in the direction predicted in Hypotheses 2 and 3.