School-wide Positive Behavioral Interventions and Supports (SWPBIS) – A universal, school-wide prevention strategy aimed at reducing behavior problems that lead to office discipline referrals and suspensions, and change perceptions of school safety. The program is rated Effective. Students in the SWPBIS schools received significantly fewer school suspensions than students in schools that did not receive SWPBIS training. Perceptions of safety improved in the schools that implemented SWPBIS, but declined in the schools that did not implement SWPBIS.