In my research, I examine the way peers affect each other’s motivation, achievement, and behavior, with the goal of understanding the social-psychological mechanisms underlying these processes and developing practical strategies to ensure that peers promote rather than inhibit each other’s success.

  • - Effects of cooperative learning on peer relations, empathy, and bullying in middle school. Aggressive Behavior.

  • - Reconsidering Jigsaw social psychology. Journal of Educational Psychology.

  • - Enlisting peer cooperation in the service of alcohol use prevention in middle school. Child Development.

  • - Cooperative Learning in middle school: A means to improve peer relations and reduce victimization, bullying, and related problems. Journal of Educational Psychology.