The efficacy of Azjen’s (1985; 1991) Theory of Planned Behavior (TPB) for the prediction of cheating intentions and behaviors was examined in a sample of 241 business undergraduates. Mediated structural equation models of the TPB, with personality constructs, adjustment and prudence, as antecedents were examined. The TPB model explained 21% of the variance in cheating intentions and 36% of cheating behavior. Results support both the TPB model and a partially mediated model in which prudence, but not adjustment, is significantly related to model components, attitudes, norms, control and behavior but not intention to cheat. These results suggest the TPB model may parsimoniously integrate and advance academic misconduct research. Further TPB research and practical implications are discussed.