Translation and psychometric testing of the simplified version of the health-related diet and exercise self-efficacy scale in China

Abstract

Background Measuring health-related diet and exercise self-efficacy is an important first step in improving healthy behaviors and health outcomes. However, we did not find a self-efficacy measurement in Chinese that is specifically targeted at diet and exercise self-efficacy among healthy adults. Aim The present study aimed to translate the Health-Related Diet and Exercise Self-Efficacy Scale -simplified version into Mandarin Chinese (HRDESES) and evaluate its reliability and validity in Chinese healthy adults. Methods The HRDESES was translated and adapted to the Chinese context, with a good content validity of 0.86 among seven experts. The survey was then carried out in 216 adults in Hunan, China. Testing of the reliability included internal consistency reliability and test-retest reliability, while validity included content validity, construct validity, and criterion validity. Results The Cronbach's α of the HRDESES was 0.87 for the total scale, 0.86 for the diet subscale and 0.91 for the exercise subscale; the McDonald's ω of the HRDESES-SC was 0.85 for the total scale, 0.86 for the diet subscale and 0.91 for the exercise subscale, all demonstrating good internal consistency. The test-retest reliability was 0.88 for the total scale, 0.81 for the diet subscale and 0.82 for the exercise subscale, demonstrating good test-retest reliability. For construct validity, the scale effectively distinguished subjects by age, gender, education, occupation, marital status, and family income, showing good discriminant validity. The confirmatory factor analysis (CFA) supported a two-factor structure of the scale: diet and exercise subscale. It was demonstrated that the HRDESES was highly associated with the General Self-Efficacy Scale and its two subscales, with correlation coefficients ranging from 0.83 to 0.86 (p < 0.05), showing high criterion validity. Conclusion The HRDESES had good reliability and validity and could be used as a simple and effective tool for assessing the health-related diet and exercise self-efficacy in Chinese healthy adults.

Objectively-Measured Physical Activity and Sedentary Behaviors and Related Factors in Chinese Immigrants in the US with Prior Gestational Diabetes Mellitus

“…Social Support for PA (SSPA) has 6 items, three for family and three for friends [ 28 ], with a higher score (range 0–4) indicating higher social support for PA. A Chinese version of SSPA is available [ 29 ]. The Cronbach’s alpha was 0.82 for the family subscale and 0.84 for the friend subscale in this study.…”

“…The Cronbach’s alpha was 0.82 for the family subscale and 0.84 for the friend subscale in this study. Self-Efficacy for PA (SEPA) has four items [ 27 ], with a higher score (range 1–4) indicating higher self-efficacy for PA. A Chinese version of SEPA is available, too [ 29 ]. The Cronbach’s alpha for the SEPA scale was 0.79 in this study.…”