Objective: The present study was to investigate the relationships between peer victimization and cyberbullying, and the mediating role of negative affect and the moderating role of online disinhibition in these relationships. Methods: Six hundred and sixty three junior high school students were recruited to complete Multidimensional Peer-Victimization Scales, Revised Cyber Bullying Inventory, Positive and Negative Affect Schedule and Online Disinhibition Scale. Results: ①Peer victimization was positively correlated with cyberbullying. ②Negati...