The Work and Social Adjustment Scale, Youth and Parent Versions: Psychometric Evaluation of a Brief Measure of Functional Impairment in Young People
- PMID: 32006302
- PMCID: PMC7235060
- DOI: 10.1007/s10578-020-00956-z
The Work and Social Adjustment Scale, Youth and Parent Versions: Psychometric Evaluation of a Brief Measure of Functional Impairment in Young People
Abstract
The Work and Social Adjustment Scale (WSAS) is a brief global measure of functional impairment that is widely used in adult health. We have adapted the WSAS for its use in youth, the WSAS-Youth version (WSAS-Y) and WSAS-Parent version (WSAS-P). This study evaluated the psychometric properties of the scale. The internal consistency, factor structure, convergent and divergent validity, test-retest reliability and sensitivity to change of the WSAS-Y/P were studied in 525 children and adolescents with obsessive-compulsive disorder and related disorders receiving treatment. The internal consistency of the WSAS-Y/P was excellent across diagnostic groups and time-points. Exploratory factor analysis extracted a single-factor of functional impairment, explaining in excess of 85% of the variance. The test-retest reliability was adequate. The WSAS-Y/P correlated more strongly with other measures of functional impairment than with measures of symptom severity, indicating good convergent/divergent validity. Finally, the WSAS-Y/P was highly sensitive to change after treatment.
Keywords: Disability; Functional impairment; Parent-report; Psychometric evaluation; Self-report.
Conflict of interest statement
Prof Mataix-Cols reports receiving personal fees for editorial work from Elsevier and royalties for contributing articles to UpToDate, Inc, all outside the submitted work. The remaining authors report no conflicts of interest.
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