2.Development of an 8-item Japanese Arthritis Self-Efficacy Scale （ASES-8J）and Investigation of its Usefulness in Patients with Osteoarthritis of the Knee
Daisuke URITANI ; Hidetaka IMAGITA ; Takahiko FUKUMOTO ; Miyuki HORIUCHI ; Sachiko SHIMIZU
The Japanese Journal of Rehabilitation Medicine 2020;57(1):79-85
Objective：The aim of this study was to develop an 8-item Japanese Arthritis Self-Efficacy Scale (ASES-8J）and perform pilot testing of its face validity and internal consistency in patients with osteoarthritis of the knee.Methods：Translation of the ASES-8J from English into Japanese was performed via forward-translation, back-translation, review by the original developer, and production of the pre-final version. We calculated the mean and standard deviation and Cronbach's alpha coefficient to assess internal consistency. Face validity was assessed by reviewing the results of the pilot study and using in-depth questionnaires on the responders' understanding of the ASES-8J.Results：Forty-one patients with osteoarthritis of the knee participated in the pilot study, with 38 providing valid responses. The mean ± standard deviation was 5.7 ± 2.2. Cronbach's alpha coefficient was 0.96, indicating high internal consistency. Of the responders, 54.9％ stated that it the ASES-8J was very easy or easy to answer. The original developer reviewed ASES-8J to confirm its usefulness.Conclusion：The results indicate that ASES-8J is a useful tool to assess the self-efficacy of patients with osteoarthritis of the knee.
3.Development of an 8-item Japanese Arthritis Self-Efficacy Scale （ASES-8J）and Investigation of its Usefulness in Patients with Osteoarthritis of the Knee
Daisuke URITANI ; Hidetaka IMAGITA ; Takahiko FUKUMOTO ; Miyuki HORIUCHI ; Sachiko SHIMIZU
The Japanese Journal of Rehabilitation Medicine 2019;():18027-
Objective：The aim of this study was to develop an 8-item Japanese Arthritis Self-Efficacy Scale (ASES-8J）and perform pilot testing of its face validity and internal consistency in patients with osteoarthritis of the knee.Methods：Translation of the ASES-8J from English into Japanese was performed via forward-translation, back-translation, review by the original developer, and production of the pre-final version. We calculated the mean and standard deviation and Cronbach's alpha coefficient to assess internal consistency. Face validity was assessed by reviewing the results of the pilot study and using in-depth questionnaires on the responders' understanding of the ASES-8J.Results：Forty-one patients with osteoarthritis of the knee participated in the pilot study, with 38 providing valid responses. The mean ± standard deviation was 5.7 ± 2.2. Cronbach's alpha coefficient was 0.96, indicating high internal consistency. Of the responders, 54.9％ stated that it the ASES-8J was very easy or easy to answer. The original developer reviewed ASES-8J to confirm its usefulness.Conclusion：The results indicate that ASES-8J is a useful tool to assess the self-efficacy of patients with osteoarthritis of the knee.
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