ABSTRACT. The purpose of this study was to investigate errors on wr itten tests of science, matters, in middle school 7th grade.Errors were defined something you have done which is considered to be incorrect or wrong, or which should not have been done.We found and classified errors, and then examined the frequency of types of errors on the written tests. A total of 167 test it emsfrom 10 middle schools were analyzed for this study. Errors on the written tests were classified into 5 types: insufficient inf ormation; unnecessary information; inaccurate information; information against curriculum; and unclear information. A total of 81 errors were counted out of 167 test items. The results of this study are expected to help teachers develop written test items to conve y de-finite meanings by text and would be used as basic information for improving written test item standards. Keywords: Errors, Science, Middle School, Examination 중학교 과학과 1학년 물질 분야의 지필평가 문항의 정보제시 오류 분석 박현주* ․ 신주란 † 조선대학교 과학교육학부