Development and psychometric testing of the Aesthetics of Everyday Life Scale in Aging (AELSA).

ABSTRACT

BACKGROUND: The aesthetics of everyday life improves physical and mental health and social communication. This study aims to develop and test a novel instrument that assesses the aesthetics of the everyday life of older adults. METHODS: A mixed-methods study with a sequential exploratory approach was conducted from November 2021 to December 2022. Item generation and questionnaire formation were developed through interviews with older adults and a literature review (stage 1). A cross-sectional study was then conducted to test the psychometric properties of the novel scale among 380 older adults referred to Urban Comprehensive Health Service Centers (stage 2). The construct validity was tested via exploratory factor analysis (EFA) and with the principal component analysis method. Internal consistency and reliability of the scale were evaluated with Cronbach's alpha and test-retest with a 2-week interval. RESULTS: The initial scale was prepared with 39 items. In stage 2, EFA revealed a seven-factor model with 34 items. Internal consistency was acceptable for extracted sub-scales (Cronbach's alpha range 0.67- 0.93) and the total score (0.926). The intra-class correlation coefficient for test-retest reliability was 0.90. CONCLUSIONS: The AELSA is a valid and reliable instrument for evaluating the aesthetics of everyday life in older adults. the scale will help policymakers in formulating interventions to improve mental health and well-being in older adults. Moreover, Further studies is need to provide more support of construct validity.