The measurement properties of the Swedish version of the Assessment of Communication and Interaction Skills.

The purpose of this study was to validate the Swedish translation of the Assessment of Communication and Interaction Skills (ACIS-S) and its applicability in Sweden. The ACIS is an observational rating scale designed to capture, in detail, a person's social interactional ability, while he/she is participating in meaningful occupations. Eighteen occupational therapists trained in administering the ACIS-S, completed 157 ACIS-S assessments of 67 subjects with psychosocial and learning disabilities. Many-faceted Rasch analysis was used to analyse the data. The results supported internal, construct and person response validity of the ACIS-S, and rater validity and reliability. The scale effectively categorized subjects according to the levels of communication and interaction ability.