Objectives: To undertake cross-cultural adaptation and validation of the educational needs assessment tool (ENAT) for use with people with rheumatoid arthritis (RA) and systemic sclerosis (Ssc) in Poland. Methods: The study involved two main phases: (i) cross-cultural adaptation of the ENAT from English into Polish and (ii) Cross-cultural validation of Pol-ENAT. The first phase followed an established process of cross-cultural adaptation of self-report measures. The second phase involved completion of the Pol-ENAT by patients and subjecting the data to Rasch analysis to assess the construct validity, reliability and cross-cultural invariance. Results: An adequate conceptual equivalence was achieved following the adaptation process. The dataset for validation comprised a total of 278 patients, 237 (85.3%) of which were female. In each disease group (145, RA and 133, SSC), the 7 domains of the Pol-ENAT were found to fit the Rasch model, 2(df)=16.953(14), p=0.259 and 8.132(14), p=0.882 for RA and SSc respectively. Reliability (person separation index, PSI>0.85) was high. Cross-cultural differential item functioning (DIF) was detected in some subscales and DIF-adjusted conversion tables were calibrated to enable cross-cultural comparison of data between Poland and the UK. Conclusion: Pol-ENAT is a robust measure of educational needs for people with RA and SSc in Poland. The tool has been shown to have sufficient cross-cultural validity to enable data pooling and comparisons between Poland and the UK.
CORE (COnnecting REpositories)
CORE (COnnecting REpositories)