This study will examine the use of an online role-playing experiment as a cyberbullying intervention tool. The study will be carried out among 14 - to 18-year old adolescents (N = 200). Respondents will be assigned a fictitious character and a role (perpetrator, victim or bystander) in a cyberbullying situation. They will be asked to identify with this character and act accordingly in an initiated mock, but realistic online bullying situation. We expect, based on role playing literature and bullying prevention programs, a positive change in the adolescents' behavioral intentions (e.g. defending a victim).