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KMID : 1211620110060040475
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Journal of the Korean Society of Physical Medicine
2011 Volume.6 No. 4 p.475 ~ p.488
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Cultural Adaptation and Reliability Testing of Korean Version of the World Health Organization Disability Assessment Schedule 2.0 : 12-item versions
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Lee Hae-Jung
Kim Da-Jeong
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Abstract
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Purpose: The aims of the study were to develop and to establish reliability in Korean versions of World Health Organization Disability Assessment Schedule 2.0(KWHODAS 2.0): 12 item-self(12-self) and 12 item-interviewer(12-interviewer) versions.
Methods: KWHODAS 2.0: 12-item versions were developed in idiomatic modern Korean with a process involving independent translation, synthesis of the translations, independent back translation, and review by an expert committee to achieve equivalence with the original English. 88 participants were included in the study. 33 of participants filled the 12-self version twice to examine test-retest reliability and 55 of participants were assessed simultaneously by four interviewers using the 12-interviewer version. Intra-rater reliability was evaluated using the intra-class correlation coefficient(ICC) and inter-rater reliability was evaluated using both the ICC and k statistic.
Results: Test-retest reliability for the 12-self version was excellent with value ranged from 0.94(CI 0.88-0.98) to 0.96(CI 0.90-0.98). Inter-rater reliability for the 12-interviewer version showed excellent agreement with from 0.94(CI 0.91-0.96) to 1(CI 1.0-1.0). K value was observed from 0.95 to 1.
Conclusion: KWHODAS 2.0: 12-self and 12-interviewer versions were successfully translated and both scales showed excellent reliability. It is now suitable for use in clinical and research applications.
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KEYWORD
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ICF, WHODAS 2.0, Reliability, Cross-cultural adaptation
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