The increasing competition for graduate students among business schools has resulted in a greater emphasis on graduate business student retention. In an effort to address this issue, the current article uses survival analysis, decision trees and TreeNet® to identify factors that can be used to identify students who are at risk of dropping out of a graduate business program. This work extends the literature in several ways. First, it looks at attrition among business school graduate students. Second, because graduate business education typically involves a mix of full-time and part-time students, our study incorporates both these groups. Finally, we use methodologies (survival analysis with timedependent predictors, decision trees and TreeNet®) which, to the best of our knowledge, have not been employed previously for studying student retention. Our results uncover several factors that could help administrators develop intervention strategies to increase graduate business student retention.