Volume 27, Issue 2 (Summer 2026)
Arch Rehabil 2026, 27(2): 218-235 |
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Ethics code: IR.USWR.REC.1403.204
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Rostaei M, Shahshahani S, Hedayati M, Vahedi M. Determining the Validity and Reliability of the Persian Version of the University of Washington Self-efficacy Scale (UW-SES) in Iranian Adults With Physical Disabilities. Arch Rehabil 2026; 27 (2) :218-235
URL: http://rehabilitationj.uswr.ac.ir/article-1-3734-en.html
URL: http://rehabilitationj.uswr.ac.ir/article-1-3734-en.html
1- Department of Rehabilitation Management, Faculty of Rehabilitation Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
2- Department of Rehabilitation Management, Pediatric Neurorehabilitation Research Centerfacultr, Faculty of Rehabilitation Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. ,sol_shah@yahoo.com
3- Department of Biostatistics and Epidemiology, Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
2- Department of Rehabilitation Management, Pediatric Neurorehabilitation Research Centerfacultr, Faculty of Rehabilitation Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. ,
3- Department of Biostatistics and Epidemiology, Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Abstract: (1195 Views)
Objective Self-efficacy is one of the key constructs in the rehabilitation of people with disabilities, and plays an important role in adaptation to disability. Existing tools in Iran are generally nonspecific and fail to assess disability-specific aspects of self-efficacy. This study aimed to translate and evaluate the psychometric properties of the Persian version of the University of Washington self-efficacy scale (UW-SES) in Iranian people with disabilities.
Materials & Methods This methodological, cross-sectional study involved 230 individuals with disabilities, including those with multiple sclerosis (MS) and spinal cord injury (SCI). The UW-SES was translated using the forward-backward method. Content validity was assessed using content validity ratio (CVR) and content validity index (CVI). Construct validity was evaluated by confirmatory factor analysis (CFA). Internal consistency was examined using Cronbach’s α and corrected item-total correlations, and test re-test reliability was assessed with interclass correlation coefficient (ICC).
Results The Persian UW-SES demonstrated excellent content validity (CVR=0.99, CVI=0.95). After model modification, CFA indicated an acceptable fit of the model (χ²/df=2.77, RMSEA=0.088, CFI=0.932). Internal consistency was excellent (α=0.943), with corrected item-total correlations in an acceptable range. Test re-test reliability showed high temporal stability (ICC=0.97).
Conclusion The Persian UW-SES is a valid and reliable tool for assessing self-efficacy in Iranian adults with disabilities. It can be used in clinical and research settings to evaluate self-efficacy and plan rehabilitation interventions.
Materials & Methods This methodological, cross-sectional study involved 230 individuals with disabilities, including those with multiple sclerosis (MS) and spinal cord injury (SCI). The UW-SES was translated using the forward-backward method. Content validity was assessed using content validity ratio (CVR) and content validity index (CVI). Construct validity was evaluated by confirmatory factor analysis (CFA). Internal consistency was examined using Cronbach’s α and corrected item-total correlations, and test re-test reliability was assessed with interclass correlation coefficient (ICC).
Results The Persian UW-SES demonstrated excellent content validity (CVR=0.99, CVI=0.95). After model modification, CFA indicated an acceptable fit of the model (χ²/df=2.77, RMSEA=0.088, CFI=0.932). Internal consistency was excellent (α=0.943), with corrected item-total correlations in an acceptable range. Test re-test reliability showed high temporal stability (ICC=0.97).
Conclusion The Persian UW-SES is a valid and reliable tool for assessing self-efficacy in Iranian adults with disabilities. It can be used in clinical and research settings to evaluate self-efficacy and plan rehabilitation interventions.
Type of Study: Original |
Subject:
Rehabilitation Management
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This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 (CC-By-NC 4.0), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
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