This experiment examined the relationship between computer programming and the following factors: mathematical ability, locus of control, introversion/extraversion, anxiety, and task time allocation. The programming performance of 14 male and 18 female students in a college-level introductory computer science course was measured by means of a math pretest, which was employed as a cognitive measure; three different personality trait questionnaires measuring introversion/extraversion, anxiety, and locus of control; and a 50-minute practical programming examination. Unexpectedly, math ability was not found to be a significant predictor of programming ability; however, time allocation to interactive program implementation was positively correlated with programming performance, suggesting that internals would be more likely to succeed at program implementation than externals. Findings also advise caution in utilizing mathematical pretests as the sole predictors of computer science success, and suggest that tests for personality traits such as internality may prove to be useful additions to tests that advise students of their chances of computer science success. A list of 14 references and four data tables complete the report. (JB)