An Exploratory Factor Analysis and Construct Validity of the Resident Choice Assessment Scale with Paid Carers of Adults with Intellectual Disabilities and Challenging Behavior in Community Settings.

ABSTRACTIntroduction: The Resident Choice Assessment Scale (RCAS) is used to assess choice availability for adults with intellectual disabilities (ID). The aim of the study was to explore the factor structure, construct validity, and internal consistency of the measure in community settings to further validate this tool. Method: 108 paid carers of adults with ID living in supported accommodation and residential care facilities in urban, rural, and semirural areas in England completed the RCAS. Exploratory factor analyses were performed and the construct validity and internal consistency of the emerging factors were assessed. Results: Principal axis factoring with oblique rotations suggested a scale with two factors (Everyday Choices and Participation in Household Activities) which explained 45% of the variance; the factors showed favorable construct validity as they identified significant differences between those living in residential care homes compared with supported living; the factors also differenti...