School-Wide Positive Behavioral Interventions and Supports (SWPBIS; Sugai & Horner, 2006) is currently implemented in over 20,000 schools across the country with the goal of preventing disruptive behavior problems and enhancing the school climate. While previous studies have indicated significant main effects of SWPBIS on student outcomes, the…

This study was a longitudinal extension of a random control trial of the Steps to Respect antibullying program. Students in Grades 3-5 were surveyed (n = 624) and observed on the playground (n = 360). Growth curve models of intervention students showed 2-year declines in playground bullying, victimization, nonbullying aggression, destructive…