Translation and cross-cultural adaptation of outcome measurements for schizophrenia

Abstract

BackgroundResearch on the comparison of mental health services has identified the need for internationally standardised and reliable measurements.AimsTo describe the strategies adopted in the European Psychiatric Services: Inputs Linked to Outcome Domains and Needs (EPSILON) Study for the translation and cross-cultural adaptation of five European versions of the instruments.MethodA protocol was developed for translation of the outcome scales, describing each step in the translation procedure. Disputed items were discussed in focus groups, which faced seven tasks: a list of topics to be discussed; choosing where the group should meet; composition of participants; conducting the group; data collection; data completion afterwards; reporting results.ResultsModifications made to instruments were: changes in the instrument structure, contents and concepts; adjustments to the instrument structure; and modifications to the instrument manual.ConclusionUse of focus groups is an adequate method to apply if concepts, constructs and translation issues are to be addressed; otherwise, less time-consuming methods should be considered.