ERIC Number: EJ1134337
Record Type: Journal
Publication Date: 2017
Abstractor: As Provided
Psychometric Validation of the World Health Organization Disability Assessment Schedule 2.0-Twelve-Item Version in Persons with Spinal Cord Injuries
Smedema, Susan Miller; Ruiz, Derek; Mohr, Michael J.
Rehabilitation Research, Policy, and Education, v31 n1 p7-20 2017
Purpose: To evaluate the factorial and concurrent validity and internal consistency reliability of the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) 12-item version in persons with spinal cord injuries. Method: Two hundred forty-seven adults with spinal cord injuries completed an online survey consisting of the WHODAS 2.0 12-item version and measures of various psychosocial variables. Results: The initial confirmatory factor analysis (CFA) revealed that both the theoretical hierarchical model and the 1-factor model of the WHODAS 2.0 12-item version exhibited a poor fit with the data. Subsequent exploratory factor analysis (EFA) revealed a 3-factor solution consisting of the factors Activities/Participation, Self-Care, and Mobility. Each factor demonstrated adequate internal consistency. These results were confirmed by a secondary CFA. In the concurrent validity analysis, the Activities/Participation factor had the strongest relationships with the psychosocial variables under study (life satisfaction, core self-evaluations, community participation, and health-related quality of life). Conclusion: The WHODAS 2.0 12-item version is not unidimensional in persons with spinal cord injuries as predicted but instead yields a three-factor solution. However, the Activities/Participation factor appears to be the most valid measure of disability impact in persons with spinal cord injuries. Other implications of the use of the WHODAS 2.0 12-item version are discussed.
Descriptors: Injuries, Neurological Impairments, Adults, Online Surveys, Psychological Patterns, Social Influences, Factor Analysis, Models, Daily Living Skills, Psychomotor Skills, Participation, Disabilities, Psychometrics, Test Validity, Questionnaires, Life Satisfaction, Self Evaluation (Individuals), Quality of Life, Statistical Analysis
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Sponsor: National Institute on Disability and Rehabilitation Research (ED/OSERS)
Authoring Institution: N/A
Grant or Contract Numbers: H133B100034