%0 Journal Article %T An Investigation of Concurrent Validity of Fidelity of Implementation Measures at Initial Years of Implementation %A Caitlin Rasplica Khoury %A Kent McIntosh %A Robert Hoselton %J Remedial and Special Education %@ 1538-4756 %D 2019 %R 10.1177/0741932518795639 %X 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 few years of implementation. The present study used cross-sectional data from 1,438 schools to examine relations between fidelity self-assessment and team-based fidelity measures in the first 4 years of implementation of School-Wide Positive Behavioral Interventions and Supports (SWPBIS). Results showed strong positive correlations between fidelity self-assessments and a team-based measure of fidelity at each year of implementation %K positive behavior supports %K fidelity of implementation %K School-Wide Positive Behavioral Interventions and Supports %K self-assessment %U https://journals.sagepub.com/doi/full/10.1177/0741932518795639