EVALUATION OF VALIDITY AND RELIABILITY OF A SELF-RATING SCALE FOR FUNCTIONING OF INDIVIDUALS WITH MENTAL DISORDERS (ACTIVITY ASPECT)

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  • 自己評価式精神障害者生活機能評価尺度(活動面)の妥当性と信頼性の検討
  • ジコ ヒョウカシキ セイシン ショウガイシャ セイカツ キノウ ヒョウカ シャクド(カツドウメン)ノ ダトウセイ ト シンライセイ ノ ケントウ

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Objective : To evaluate the validity and reliability of Self-Rating Scale for Functioning of Individuals with Mental Disorders (Activity 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 ± 11.9 and their day-care service use averaged 55.1 ± 46.9 months. 2. Validity and reliability A factor analysis was conducted with respect to validity and three factors were extracted, with the cumulative contribution rate being 56.8%. As regards the retesting reliability, there was a significant correlation of 0.95 (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 0.86 (p < 0.01). The internal consistency (α) ranged from 0.80 to 0.91. As explained above, the reliability and validity are guaranteed for this scale.

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