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Psychometric properties of the Classification and Assessment of Occupational Dysfunction (CAOD) for clinical settings Mutsumi Teraoka 1,2 , Makoto Kyougoku 3 1Japan Health Welfare Laboratory, Kibi International University 2Oosugi Hospital 3Graduate School of Health Science, Kibi International University Keyword: 作業機能障害 , 身体障害 , 精神障害 , 作業機能障害の種類と評価 , Occupational dysfunction , Physical disability , Mental disability , Classification and Assessment of Occupational Dysfunction , CAOD pp.508-517
Published Date 2018/10/15
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 The purpose of this study was to examine the psychometric properties of the Classification and Assessment of Occupational Dysfunction (CAOD) in clinical setting including both physical and mental disability fields. A sample of 145 clients with disabilities completed the CAOD and the MOS 36-Item Short-Form Health Survey (SF-36). We performed Kolmogorov-Smirnov test, confirmatory factor analysis (CFA), latent class based multiple group analysis (LCBMGA), correlation analysis, polyserial correlation analysis, factor contribution ratio, Cronbach's alpha and McDonald's omega coefficient, item response theory (IRT), and latent rank analysis (LRA). As a result, the Kolmogorov-Smirnov test indicated a normal distribution; CFA was generally positive. In a multiple group structural equation modeling, the LCBMGA showed a measurement invariance in a CAOD and SF-36 showed some correlation. The results of the polyserial correlation analysis, factor contribution ratio, Cronbach's alpha and McDonald's omega coefficient were one-dimensional. IRT exhibited good item characteristics. However, when targeting average or below average occupational dysfunction, the measurement accuracy of CAOD decreased. LRA showed occupational dysfunction of a factor of 5 which is in line with previous studies. This study found that CAOD can be used for clients with disabilities. However, future research should modify the CAOD to prevent deterioration of measurement precision when targeting persons with mild occupational dysfunctions.


Copyright © 2018, Japanese Association of Occupational Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 0289-4920 日本作業療法士協会

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