DEVELOPING THE KOREAN EDUCATIONAL NEEDS ASSESSMENT TOOL (KOREAN-ENAT) IN RHEUMATOID ARTHRITIS: A CROSS-CULTURAL VALIDATION USING RASCH ANALYSIS
- Authors
- Sung, Y. -K.; Kim, D.; Cha, S. J.; Yoo, D.; Kim, S. -H.; Ndosi, M.; Cho, S. -K.
- Issue Date
- Jun-2017
- Publisher
- BMJ PUBLISHING GROUP
- Citation
- ANNALS OF THE RHEUMATIC DISEASES, v.76, pp.1473 - 1473
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANNALS OF THE RHEUMATIC DISEASES
- Volume
- 76
- Start Page
- 1473
- End Page
- 1473
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/4197
- DOI
- 10.1136/annrheumdis-2017-eular.4549
- ISSN
- 0003-4967
- Abstract
- Background The Educational Needs Assessment Tool (ENAT) is a 39-item patient-completed questionnaire designed to help patients identify and prioritize their educational needs. It was originally developed in the UK and validated in 7 rheumatic diseases including rheumatoid arthritis (RA).1
Objectives This study aimed to undertake cross-cultural adaptation and validation of the ENAT in RA for use in Korea.
Methods The study involved two main phases: (1) Cross-cultural adaptation of the ENAT from English into Korean and (2) validation of the Korean-ENAT. The first phase followed an established process of cross-cultural adaptation of self-report measures.2 For the second phase, patients with RA completed the Korean-ENAT at the outpatient clinic of a university hospital and Rasch measurement computer program, WINSTEPS, was used to analyze the data. Fit to the model was determined by the observed data Infit and Outfit statistics (≥0.50 and ≤1.50); where a value of 1.00 suggests a perfect fit to the model expectations. The unidimensionality of the scale was determined by item (and person) separation index ≥2.00 and reliability ≥0.80.
Results An adequate conceptual equivalence was achieved following the adaptation process. A total of 123 patients completed the Korean-ENAT. Their mean ± SD age was 46.7±12.3, disease duration 53.7±71.2 months and the majority (81.3%) were female. Thirty-five of the 39 items displayed good fit to the model. The 4 items deviating from the model had Infit and Outfit >1.50. The item separation index (5.26) and item reliability index (0.97) provided evidence for good reliability of items. All the 7 domains of the Korean-ENAT were found to fit the Rasch model. The internal consistency of the Korean-ENAT was high and unidimensionality was confirmed (Person separation index =3.41 reliability index =0.92; item separation index =16.82 and reliability index =1.00).
Conclusions Using a standard process in cross-cultural adaptation, the ENAT was adapted into Korean and Rasch analysis confirmed that the construct validity, reliability, and unidimensionality of the Korean-ENAT. The Korean-ENAT provides valid and reliable estimates of educational needs of people with RA in Korea.
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