Psychometric assessment of the Bahasa Malaysia version of the Older Americans Resources and Services‐Instrumental Activities of Daily Living (OARS‐IADL).

Objective: This study aimed to determine the psychometric properties of the Bahasa Malaysia (BM) version of the Older Americans Resources and Services‐Instrumental Activities of Daily Living (OARS‐IADL) questionnaire among older persons in Malaysia. Methods: The English version of OARS‐IADL was translated to BM. The psychometric properties of the BM version of OARS‐IADL were tested among older persons attending a health‐care facility. Results: Two hundred and seventy‐one older persons participated in the study. The mean age of participants was 67.7 ± 6.1 years. Internal consistency of the items was good (Cronbach's alpha, >0.7). Exploratory factor analysis revealed a single dimension with item factor loadings of >0.5. Confirmatory factor analysis results confirmed a single‐factor model (AVE > 50%, CR > 0.7 and CR > AVE). Conclusion: The BM version of the OARS‐IADL questionnaire is a valid and reliable instrument that can be used to assess the IADL among older persons in Malaysia. [ABSTRACT FROM AUTHOR]