Positive Behavior Interventions and Supports (PBIS) is an approach to supporting students to be successful in schools and facilities.  PBIS was developed from research in the fields of behavior theory and effective instruction.  PBIS supports all students through intervention ranging from a site-wide system to a system for developing individualized plans for specific students. Site-wide PBIS focuses on the development and implementation of pro-active procedures and practices to prevent problem behavior for all youth, and improve school climate.