Abstract:Objective To translate the Weight Control Strategies Scale (WCSS) into Chinese and assess its reliability and validity in overweight and obese adults.Methods The WCSS was translated into Chinese using the Brislin translation model, including forward translation, back translation, cultural adaptation, and pre-survey.A total of 716 overweight and obese adult patients were selected from the outpatient and inpatient departments of the endocrinology clinic of a tertiary hospital in Shanghai through two rounds of convenience sampling to assess the scale′s reliability and validity.Results The Chinese version of the WCSS consists of 30 items across four dimensions:diet choices (10 items), physical activity (7 items), self-monitoring (6 items), and psychological coping (7 items). The cumulative variance contribution rate of the four common factors was 64.116%. The content validity index at the scale level was 0.97, and the content validity index at the item level ranged from 0.800 to 1.000. The scale′s Cronbach′s α coefficient was 0.947, split-half reliability was 0.94, Confirmatory factor analysis showed the following fit indices:χ2/df=2.729, RMR=0.044, RMSEA=0.065, NFI=0.862, IFI=0.908, TLI=0.899, CFI=0.908, indicating good model fit.The AVE square root values were greater than the correlation coefficients, and significant correlations were found between all dimensions (all P<0.05).Conclusion The Chinese version of the WCSS demonstrates good reliability and validity, and can be used as an evaluation tool for weight management strategies in overweight and obese populations.