J Korean Phys Ther.  2018 Dec;30(6):246-255. 10.18857/jkpt.2018.30.6.246.

Korean Cultural Adaptation of WHODAS 2.0 (36-Item Version): Reliability and Linking to ICF

Affiliations
  • 1Department of Physical Therapy, College of Health and Welfare, Silla University, Busan, Korea. hjlee@silla.ac.kr

Abstract

PURPOSE
This study was to conduct a Korean cultural adaptation of the WHO disability assessment schedule (WHODAS) 2.0: 36-item version.
METHODS
An internationally standardized process of translation and cultural adaptation of an instrument was used to develop a Korean version of WHODAS 2.0: 36-item version. Linking each item into the international classification of functioning, disability and health (ICF) was also conducted in order to ensure the concepts in the translated instrument were compatible with ICF. All translated versions of the instrument, linking results and feedback from participants were used for the final adaptation of the Korean version of the instrument. The Korean version of the instrument was assessed twice on different occasions to examine inter- and intra-rater reliability, and the intra-class correlation coefficient (ICC) was calculated.
RESULTS
Twelve participants were involved in the translation and linking process. Ninety-five volunteers were invited to participate to examine the reliability of the instrument. Fifty participants completed the self-rated version of the instrument and 45 finished the interviewer version. The Korean WHODAS 2.0: 36-item version was found to have excellent reliability: self-rated version and interviewer version reliability coefficients were ICC=0.92 and ICC=0.94, respectively. Thirty-four items of the translated instrument were to be linked to ICF categories. Some adaptation was made; details and a familiar example were added to help respondents answer the questions.
CONCLUSION
The study results show that the adaptation of the 36-item version of WHODAS 2.0 to Korean was successful and the instrument is ready for use in testing its psychometric properties.

Keyword

WHODAS 2.0: 36 item version; Korean cultural adaptation; ICF

MeSH Terms

Appointments and Schedules
International Classification of Functioning, Disability and Health
Psychometrics
Surveys and Questionnaires
Volunteers
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