Validation of the Thai World Health Organization Quality of Life-OLD (WHOQOL-OLD) among Thai older adults: Rasch analysis.

ABSTRACT: Rasch analysis was employed to investigate the psychometric properties of the Thai version of the World Health Organization Quality of Life-OLD (WHOQOL-OLD) instrument among the Thai older adults. The analysis was conducted on a subset of 300 individuals randomly selected from a group of 800 older adults. The results revealed that the WHOQOL-OLD showed an acceptable fit to the Rasch model (χ²[9] = 7.39, p = 0.60), confirming unidimensionality, local independence, and satisfactory reliability (person separation index [PSI] = 0.75) when the domains were merged into three superitems: 1) autonomy, past-present-future activities, and death and dying; 2) social participation and intimacy; and 3) sensory ability. These three-domain superitems showed significant differential item functi

SUBMITTER: Kangwanrattanakul K 

PROVIDER: S-EPMC12000477 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature