In the field of gender based violence prevention more and more emphasis is being put on preventative efforts through attitude change. This study is the result of a minor field study in Rwanda and analyzes the mechanisms that are present during the process of attitude change. The purpose of this study is to isolate the mechanisms within this process. The study applies feminist theory and process tracing though elite interviewing. The analysis is built on 14 interviews with field officers working for the organization Rwanda Men's Resource Center as instructors on a gender based violence prevention program. It was found that attitude change is more likely when participants feel equal and not threatened, as well as when they were able to draw their own conclusions and be agents of their own ideas. Furthermore, when exposed to new ideas concretely through their personal relationship with a trainer, to their spouses, and through take-home exercises, participants gained new insights. To be successful the program required a long term commitment to the subject at hand. Ultimately, this signals that attitude change is a long and continuous process- of which lasting results can be achieved through continued reinforcement.