The purpose of this study was to identify the relative contribution of individual and contextual predictors to students' attitudes toward the acceptability of cheating and plagiarism. A group of 324 students from a tertiary institution in New Zealand completed an online survey. The findings indicate that gender, justice sensitivity, and understanding of university policies regarding academic dishonesty were the key predictors of the students' attitudes toward the acceptability of cheating and plagiarism, both as agents of dishonest conduct and as witnesses of misconduct among their peers. The implications of these findings for the development of policies and initiatives in tertiary institutions are discussed. Copyright © 2014 Taylor & Francis Group, LLC.