Validation of an Expanded Measure of Integrated Care Provider Fidelity: PPAQ-2.

This study aimed to validate the factor structure of the expanded Primary Care Behavioral Health Provider Adherence Questionnaire (PPAQ-2), which is designed to assess provider fidelity to both the Primary Care Behavioral Health (PCBH) and collaborative care management (CCM) models of integrated primary care. Two-hundred fifty-three integrated care providers completed self-reports of professional background, perceptions of clinic integration and related practice barriers, and the PPAQ-2. Confirmatory factor analyses were conducted to assess the theorized factor structure and criterion validity was assessed through correlational analysis. Factor analyses demonstrated adequate fit with the data and acceptable to excellent composite reliabilities across five PCBH domains and five CCM domains. Validity was demonstrated by correlations between adherence scores and measures of clinic integration and barriers to fidelity. The PPAQ-2 is a psychometrically sound measure that can be used in future integrated care dismantling studies to identify provider behaviors that best predict patient outcomes.