Reliability and validity of a measure of work-related subjective experiences among people with psychiatric disabilities
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Aims: To investigate aspects of the reliability and validity of the Work-related Subjective Experiences Scale (WSE-38), an instrument designed to help mental health professionals tailor mental health care to reduce employment restrictions. Methods: Sixty community residents with schizophrenia or schizoaffective disorder were recruited from a register of previous research participants in an existing genetics study of people with schizophrenia. The WSE-38 was administered via telephone interview, repeated two-five days later. Short-cycle test-retest reliability, internal structure, and concurrent validity were assessed. Face validity, utility, consumer and clinician acceptability were examined qualitatively. Findings: Short cycle test-retest reliability for most items and the total score were found to be good to very good. Items with low reliability were removed. Concurrent validity was promising with respect to a range of relevant measures. Face validity, client acceptability, and user utility were adequate. Further scale development and modifications to administration instructions are indicated. Conclusions: These results support further scale development and inform how it can be used for its intended purpose. Sensitivity to real change and predictive validity require ongoing investigation.
International Journal of Therapy and Rehabilitation
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