The current study used both Ajzen’s theory of planned behavior (TPB) and Bandura’s social cognitive theory (SCT) to examine the intentions of business undergraduate students toward taking elective ethics courses and investigated the role of self-identity in this process. The study was prospective in design; data on predictors and intentions were obtained during the first collection of data, whereas the actual behavior was assessed 10 days later. Our results indicated that the TPB was a better predictor of behavioral intentions than (...) was SCT. As expected, self-identity served as a moderator in the relationship between perceived behavioral control and behavioral intentions posited by the TPB and in the relationship between outcome expectancy and behavioral intentions posited by SCT. Self-identity was a crucial factor in predicting actual behavior within both theoretical frameworks. (shrink)