One of the reasons IPS has been successfully replicated in different countries is because its key principles and practices have been carefully articulated in an IPS fidelity scale and implementation manual. Both have been continually updated based on practitioner and service user feedback.
The fidelity scale can be used to review services, scoring how well they are following the evidence-based principles and practices. Research has found that total score on the IPS fidelity scale is a robust predictor of service performance.
References:
Kim, S. J., Bond, G. R., Becker, D. R., Swanson, S. J., & Langfitt-Reese, S. (2015). Predictive validity of the individual placement and support fidelity scale (IPS-25): A replication study. Journal of Vocational Rehabilitation, 43(3), 209-216.
Bond, G. R., Becker, D. R., Swanson, S. J., & Ellison, M. L. (2019). IPS Fidelity Scale for Young Adults. Worcester, MA: University of Massachusetts Medical School, Transitions to Adulthood Center for Research and Lebanon, NH: IPS Employment Center, Rockville Institute.
IPS fidelity scale for young adults
Gary R. Bond, Deborah R. Becker, Sarah J. Swanson, & Marsha L. Ellison.
This tool is an adaptation of the IPS fidelity scale tailored to the young adult (15 to 26 years) population.
