This evaluation brief examines the capacity of schools of varying levels of socioeconomic and racial diversity to implement Tier 1 of school-wide positive behavior support with integrity. The three main evaluation questions addressed are: (1) What percentage of schools are able to achieve 80%-80% implementation status on the School-wide Evaluation Tool (SET) within 1 year? (2) Is school socioeconomic status associated with implementation effectiveness? (3) Is school racial diversity associated with implementation outcomes?
