The core premise of the bystander approach to campus violence prevention emphasizes the prosocial role that community members can play in thwarting sexual violence and focuses on encouraging and training students to act in ways that interrupt potentially violent situations (Dovidio, Piliavin, Schroeder, & Penner, 2006). How students perceive themselves as active bystanders--those most likely to disrupt situations with violence potential--is critical for creating effective campus policies designed to help stop violence in its many forms. However, little research has been done to measure college students' intention to intervene in potentially violent situations, nuanced to the collegiate contexts students actually face (McMahon, 2010). Although some scales have been developed to gauge past bystander behavior, attitudes, and efficacy (see McMahon, Banyard, & McMahon, 2015), they do not measure students' likelihood to intervene in specific situations and the social contexts that motivate such behavior. The purpose of this article is to introduce a scenario-based measure designed to assess students' intention to intervene in a bystander situation. [Jan Arminio, Ed.]