Physical Therapy Korea (한국전문물리치료학회지)
- Volume 14 Issue 1
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- Pages.37-45
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- 2007
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- 1225-8962(pISSN)
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- 2287-982X(eISSN)
Application of Rasch Analysis to the Activities-Specific Balance Confidence (ABC) Scale
Activities-Specific Balance Confidence(ABC)척도에 대한 라쉬분석의 적용
- Hwang, Su-Jin (Dept. of Rehabilitation Therapy, The Graduate School, Yonsei University) ;
- Yi, Chung-Hwi (Dept. of Physical Therapy, College of Health Science, Yonsei University Institute of Health Science, Yonsei University) ;
- Park, So-Yeon (Dept. of Occupational Therapy, College of Public Health and Health Professions, University of Florida Seiyon Child Development Center)
- Received : 2006.11.29
- Accepted : 2007.01.15
- Published : 2007.02.19
Abstract
This study was designed to examine, applying Rasch analysis based on item response theory, the questionnaires of the Activities-Specific Balance Confidence (ABC) scale for the elderly. The subjects were 99 institutional older adults and clients of social welfare facilities. The subjects (17 men, 72 women) ranged in age from 65 to 94 years (mean age 76.5 yrs). The Winsteps software was used to assess whether the ABC scale fits the Rasch model, to estimate the score and to refine the rating scale. The results are as follows. Twenty-two subjects were excluded as misfit persons. Four items were found to be misfits and the order of difficulty of the remaining 12 items was rearranged. Their balance confidence is indicated by -.64~1.12 logit, and the transformation formula is score=[(logit score+2.76)/(2.76+3.48)]