Evaluation of the reliability and validity of Chinese version self-efficacy for rehabilitation outcome scale

Objective To introduce and Chinesize the self-efficacy for rehabilitation outcome scale （SER） from America, and to evaluate the reliability and validity of Chinese version SER in total knee arthroplasty patients .Methods The SER from America received the translation , back translation and cultural adjustment according to the standard step of Chinesization .One hundred and forty-six patients with total knee arthroplasty were surveyed by the Chinese version SER , and the items of scale were chosen by the method of extreme group , and the reliability and validity were assessed by the descriptive analysis , correlation analysis , factor analysis and maximum oblique rotation .Results Twelve items were contained in the Chinese version SER, and the coefficient of Cronbach ’s α was 0.942.The factor analysis showed that there were two factors , and the contribution rate of cumulative variance was 75.31%.Conclusions The Chinese version SER has good reliability and validity , and can be used for evaluation of the self-efficacy for rehabilitation exercise in total knee arthroplasty patients in our country . Key words: Rehabilitation; Self-efficacy; Arthroplasty; Reliability; Validity