Psychometric properties of the Chinese version of the Motivation to Change Lifestyle and Health Behaviors for Dementia Risk Reduction scale (MCLHB-DRR) in Chinese community-dwelling older adults

Abstract

Objectives: To assess the psychometric properties of Chinese version of Motivation to Change Lifestyle and Health Behaviors for Dementia Risk Reduction (MCLHB-DRR) scale in Chinese community-dwelling older adults. Methods: A convenience sample of 150 Chinese adults aged ≥50 was recruited from local community facilities. Reliability of MCLHB-DRR was evaluated using internal consistency and test-retest reliability over two weeks. Content validity and construct validity were assessed. Translation process followed Brislin's translation model. Results: After excluding two items with poor loadings, the confirmatory factor analysis revealed a good model fit (χ2/df=2.14; CFI=0.91; IFI=0.91; RMSEA=0.087). The scale exhibited good internal consistency (Cronbach's alpha = 0.865), as well as acceptable test-retest reliability (ICC=0.730). Conclusions: The Chinese MCLHB-DRR showed satisfactory psychometric properties, providing valuable insights for promoting dementia risk reduction in Chinese population, considering cultural nuances that shape motivations and knowledge of lifestyle changes.