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J Health Psychol. 2014 Apr;19(4):544-55. doi: 10.1177/1359105313475897. Epub 2013 Mar 5.

Rasch analysis of the General Self-Efficacy Scale in spinal cord injury.

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Swiss Paraplegic Research (SPF), Switzerland.


This study examined the psychometric properties of the General Self-Efficacy Scale by applying Rasch analysis to data from 102 persons with spinal cord injury. Our results suggest that the General Self-Efficacy Scale is a psychometrically robust instrument suitable for application in a spinal cord injury population. The General Self-Efficacy Scale shows an overall fit to the Rasch model (χ(2) = 15.5, df = 20, p = .75), high reliability (rp = 0.92), ordered response scale structure, and no item bias by gender, age, education, and lesion levels. However, the analyses indicate a ceiling effect and potential to enhance the differentiation of the General Self-Efficacy Scale across self-efficacy levels.


Rasch analysis; psychometrics; rehabilitation; self-efficacy; spinal cord injury

[Indexed for MEDLINE]

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