Related Experiment Video
Updated: Sep 17, 2025
Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
Published on: May 31, 2021
Cross-Cultural Adaptation and Validation of a Psychological Scale for Bariatric Surgery: The BariTest
Tianying Xiang1, Jionghuang Chen2, Jing Fang1
1Nursing Department, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Objective:
This study aimed to localize the BariTest psychological scale for bariatric surgery and verify its psychometric properties in Chinese bariatric population.
Methods:
Initially, the original version BariTest scale was evaluated for quality in accordance with the 2018 Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN) guidelines. Following this, a comprehensive cross-cultural adaptation process was undertaken to translate the scale into Chinese. Ultimately, to evaluate its psychometric properties, a questionnaire survey was administered to a convenience sample of 328 patients undergoing BS at a tertiary grade A hospital in Zhejiang Province.
Results:
The original BariTest scale received a recommendation for use (Level A). The Chinese adaptation exhibited exceptional reliability excellent reliability (Cronbach's α = 0.983) and test-retest reliability coefficient (r = 0.848), both statistically significant (p < 0.001). The Scale-level Content Validity Index (S-CVI/Ave) was 0.988, indicating a high degree of high validity. Confirmatory Factor Analysis (CFA) revealed an acceptable structural validity for the six-factor model, evidenced by the following fit indices: χ²/df = 1.355, RMSEA = 0.033, SRMR = 0.0327, IFI = 0.97, CFI = 0.97, TLI = 0.969, and GFI = 0.824. Additionally, the psychometric evaluation affirmed robust convergent and discriminant validity.
Conclusion:
The Chinese version of the BariTest scale demonstrates robust reliability and validity, positioning it as an effective psychological scale for bariatric surgery in China.
