The Effective Behavior Support Self-Assessment Survey (SAS; Sugai, Horner, & Todd, 2003) is designed to measure perceived Positive Behavior Interventions and Supports (PBIS) implementation and identify priorities for improvement. Despite its longevity, little published research exists documenting its reliability or validity for these purposes. The current study reports on the SAS's internal consistency, construct validity, and criterion validity for a medium-sized rural/suburban district. It was found that the SAS possesses adequate internal consistency and validity. However, results suggest that further improvements to the survey could be made. Possible modifications and future directions are discussed.