Factor structure, reliability and validity of the Wraparound Fidelity Index Short Form (WFI-EZ)

November 27, 2023 | NWI

Citation: Bruns, E. J., Olson, J. R., Parigoris, R. M., Parker, E. M. & Walker, J. S. (2023). Factor structure, reliability and validity of the Wraparound Fidelity Index Short Form (WFI-EZ). Journal of Child and Family Studies 32, 1855-1868.

Abstract: The current study presents results from a series of studies that collectively assessed the factor structure, reliability, and validity of the Wraparound Fidelity Index, Short Form (WFI-EZ), a four section, multi-informant, self-report measure. Analyses of a sample of 10,955 caregivers of youth who received Wraparound and completed the WFI-EZ found a four-factor solution that aligned well with previous theories of change for Wraparound, with factors focused on team membership, team process, inclusion of natural supports, and intermediate outcomes, including increased family assets and more effective services and supports. Results indicate the WFI-EZ is a reliable and valid measure of Wraparound fidelity, while also pointing to opportunities for future refinement, further research, and opportunities for improving Wraparound training and implementation support.