Heavy and problematic drinking and sexual assault warrant significant concern on U.S. college campuses. Emerging evidence suggests that the risk for sexual victimization is amplified in the context of high-risk drinking behavior--and despite recent attention to sexual assault (e.g., MeToo Movement), rates of perpetration remain largely unchanged. In applying the bystander intervention framework, our understanding of the relation between key factors that may facilitate or prevent behavioral action, or when and how these factors are most salient, is limited. The present study examined whether bystander attitudes and bystander self-efficacy predict bystander intent to intervene while accounting for prior intervention training exposure and social desirability bias. Hypotheses were tested among college student drinking gamers, a group at particular risk for involvement in situations of sexual violence. Participants (N = 970) were traditional college-aged student drinking gamers recruited from three universities across the East and Southern United States. Analyses revealed that hypotheses were partially supported. The full model was significant, but bystander self-efficacy did not significantly moderate the relation between rape myth acceptance and bystander intent to intervene. Neither covariate (previous intervention exposure; social desirability) significantly contributed to the model. The discussion addresses implications for sexual assault prevention programs on college campuses and directions for future research. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]