Japanese Journal of Human Sciences of Health-Social Services
Online ISSN : 2424-0036
Print ISSN : 1340-8194
EVALUATION OF VALIDITY AND RELIABILITY OF A SELF-RATING SCALE FOR FUNCTIONING OF INDIVIDUALS WITH MENTAL DISORDERS (PARTICIPATORY ASPECT)
Miyuki SaitoEiko SuzukiTomomi Azuma
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2015 Volume 21 Issue 2 Pages 19-29

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Abstract
Purpose : To evaluate the validity and reliability of Self-Rating Scale for Functioning of Individuals with Mental Disorders (Participatory Aspect) on the basis of the International Classification of Functioning, Disability and Health (ICF). Research Method : The subjects were 1,272 day-care center visitors with schizophrenic disorders. Two questionnaire surveys were conducted by mail using the "self-rating scale for functioning" between September 2007 and February 2008. Factor and criterion-related analyses were conducted to ensure validity, and reproducibility, and internal consistency was tested for reliability. Result and Discussion : 1. Day-care service users The subjects were all typical psychiatric day-care users aged 46.4 ± 12.3 and their day-care service use averaged 54.5 ± 48.7 months. 2. Validity and reliability A factor analysis was conducted with respect to validity and five factors were extracted, with the cumulative contribution rate being 54.4%. As regards the retesting reliability, there was a significant correlation of 0.93 (p < 0.01) between the first and second surveys. With the split-half method, there was a significant correlation between the total even and odd-numbered items in the surveys of 0.85 (p < 0.01). The internal consistency (α) ranged from 0.67 to 0.82. As explained above, the reliability and validity are guaranteed for this scale.
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© 2015 Japanese Society of Human Sciences of Health-Social Services
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