German translation and validation of the Interprofessional Facilitation Scale

We identified evidence from item response theory (IRT) to examine a German translation of the Interprofessional Facilitation Scale (IPFS). The IPFS was administered to n = 130 mixed-health profession participants in a post-interprofessional education practicum questionnaire. We used IRT analyses to examine the following three aspects of the IPFS: (a) general factor strength, (b) subscale usability, and (c) item bias. First, findings indicate a strong, general factor underlying the IPFS that supports unidimensional interpretations. Second, findings supported IPFS overall reliability, but failed to support subscale reliabilities. Third, item bias assessment using a comparator-French sample (n = 89) indicated insubstantial differences across German and French samples. Taken together, we find sufficient evidence to support the IPFS-German translation's application in IPE contexts and unidimensional interpretations. Subscores are not advisable for interpretation, and future researchers should aim to further inspect potential item bias.