Development of the Chinese-version of the exercise self-regulatory efficacy scale for patients with chronic obstructive pulmonary disease

作者：Tsai Yu Han; Chen Jyu Lin; Davis Amy H T; Yen Wen Jiuan; Lin Yen Ju; Chiang Li Chi; Chen Yu Ju^*

来源：Heart & Lung, 2018, 47(1): 16-23.

DOI：10.1016/j.hrtlng.2017.10.007

• Exercise self-regulatory efficacy
• Cross-cultural adaptation
• Psychometrics
• Translation
• Instrument

Background: A valid and reliable instrument for assessing exercise self-regulatory efficacy (Ex-SRE) is lacking in Taiwan.
Objective: To develop and validate a Chinese-version of the Ex-SRE scale (Ex-SRES-Chinese).
Methods: Published guidelines were followed for cross-cultural adaptation of Ex-SRES-Chinese. Psychometric testing was conducted in 76 subjects with chronic obstructive pulmonary diseases (COPD).
Results: Ex-SRES-Chinese achieved clarity, culture appropriateness, and functional equivalence for measuring Ex-SRE. The scale-level content validity index of the Ex-SRES-Chinese was 0.99. The internal consistency reliability (Cronbach's alpha) was 0.925. Factor analysis identified a single factor with a high eigenvalue of 7.6 accounting for 47.5% of the total variance. The construct validity of Ex-SRES-Chinese was supported by higher Ex-SRE in subjects who exercise regularly in the past than those who did not (p = 0.033). In addition, Ex-SRE was positively associated with weekly exercise time (r = 0.58; p < 0.0001).
Conclusions: Ex-SRES-Chinese is a useful cross-culturally adapted instrument with good psychometric properties for measuring Ex-SRE in COPD patients in Taiwan.

• 出版日期2018-2