School-wide positive behavior interventions and supports (SWPBIS) relies on the implementation efforts of frontline service providers such as teachers, administrators, and staff. The full version of the positive behavior interventions and supports--action and commitment tool (PBIS-ACT Full) measures the individual implementer variable of…

Fidelity of implementation of school practices is crucial to student outcomes. Several types of tools, including self-assessments, are available for measuring fidelity, but little is known regarding the relation of self-assessments of fidelity to fidelity instruments completed with the support of external experts, specifically, during the first…