동일 문항 재출제시 반응의 변이

• 영문명: Response Variations to Same Items between Two Consecutive Grades in Medical School Examination
• 발행기관: 한국의학교육학회
• 저자명: 황인홍(Inhong Hwang) 최문기(Moongi Choi)
• 간행물 정보: 『Korean Journal of Medical Education』제13권 제2호, 269~276쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2001.12.31

영문 초록

In order to compare a group of examinees to other group, the tests taken by two groups of examinees should be equivalent. The first step of the equating the test is to make anchor items. In medical schools, the students prepare the examination through the thorough review of the test items of previous year. So it is said that the reuse of the same items could be undesirable. The purpose of this study is to find out response variations to the same items between two consecutive grades when the items are reused. The senior classes of a medical school are sampled and the test items of graduation examination was analysed. On the basis of item difficulty (item s p-value) and discrimination index, we selected 35 items. Next year, we reused those items to the same examination to the senior class of that year, and the result was analysed. Among those 35 items, 14 items were modified slightly. The averages of the item difficulty and discrimination index on the previous examination were 0.49 and 0.20 which were in the desirable ranges. But at the next year these data were worsened to 0.84 and 0.10 respectively. This trends were not different in the slightly modified items. And there was no significant differences among the item groups classified on the basis of the level of knowledge. We could ascertain that if a previously used item used again to a test, the item difficulty will increase (become easy) and discrimination index will decrease even though minor modification is done.

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연구 대상 및 방법

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키워드

Test equating Item analysis Anchor test