Abstract
Previous research shows that the Multnomah Community Ability Scale (MCAS) total score is reliable and has predictive validity. This study evaluates the MCAS total and sub-scale scores on a sample of 1,250 outpatient mental health clients in Washington State. The MCAS sub-scales are reliable, and there is evidence for their concurrent validity. However, the factor structure of the MCAS only partially replicated the hypothesized sub-scales, and the authors recommend that sub-scales as currently constructed not be used as performance indicators. If only the total MCAS is of interest to users, the authors recommend using the single-item SOFAS rather than the 17-item MCAS.
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Hendryx, M., Dyck, D.G., McBride, D. et al. A Test of the Reliability and Validity of the Multnomah Community Ability Scale. Community Ment Health J 37, 157–168 (2001). https://doi.org/10.1023/A:1002713816110
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DOI: https://doi.org/10.1023/A:1002713816110