문항반응이론을 의사국가시험에 적용하기 위한 일차원성 및 적합도 검정

• Published in: Korean journal of medical education Vol. 19; no. 2; pp. 163 - 169
• Main Authors: 임미경(Mi Kyoung Yim), 허 선(Sun Huh)
• Format: Journal Article
• Language: Korean
• Published: 한국의학교육학회 30.06.2007
• Subjects: 기타의약학; Korean Medical Licensing Examination; Goodness-of-fitness; Item response theory; Unidimensionality
• ISSN: 2005-727X; 2005-7288

Purpose: In order to apply the item response theory to test results, the assumptions made about unidimensionality and item goodness-of-fitness should be tested before analysis. To know if the Korean Medical Licensing Examination results fulfill these assumptions, appropriate tests were done on these two features. Methods: Three results(from three subjects) of the Korean Medical Licensing Examination, done in January 2004, were converted into 1, 0 data. The Holland and Rosenbaum Method(HRMH) and DETECT were used to test unidimensionality. The Winsteps was used to test goodness-of-fitness according to the Rasch model. Results: Unidimensionality was rejected by HRMH but accepted by DETECT. With the Rasch model, 2 out of 550 items were inadequate. Each 137, 73 and 455 examinees out of 3,881 were inadequate in three subjects of 126, 400 and 24 items. Conclusion: The above results suggest that DETECT is desirable for testing unidimensionality of high-stakes tests with more than 100 items. According to the Rasch model, the Korean Medical Licensing Examination fulfills the goodness-of-fitness to be analyzed according to the item response theory. KCI Citation Count: 3