组织学考试的质量测评

Measurement and evaluation of theory examination in histology

目的了解北京协和医学院组织学的考试质量。方法对2006级至2010级临床医学专业八年制学生组织学考试试卷共393份进行教育测量学计算与统计学分析。结果组织学考试5年的成绩总平均分为79．5±12．9，学生成绩在各学年间无显著差异。试卷分析显示5年间试卷难易度在0．77-0．84之间小幅变化，区分度从0．26逐渐增加到0．34。信度和效度全部达到优秀水平。试题分析显示综合评价为优秀的试题从2006级的59．09％上升到2010级的88．89％，全部230道试题中优秀试题占72．17％。2006级与2010级在试题难易度、区分度方面存在显著差异。结论组织学考试的质量整体较高，试题的质量也在逐年提高，但仍存在一些不足有待改进。考试质量分析为今后教学质量的提高和试题库的建设提供了重要参考。

Objective To evaluate the quality of the histology theory examinations in Peking Union Medical Col- lege. Methods A total of 393 theory examination papers in histology for medical students in 8-year clinical medi- cine program from Grade 2006 to Grade 2010 were evaluated. Results The average score was 79.5 ± 12. 9. There was no significant difference among them. Analysis for these test papers indicated that the P-value of dit/iculty var- ied within the range from 0. 77 to 0. 84, and the D-value of discrimination inereased from 0. 26 to 0. 34 during these 5 years. The reliabilities and validities for the examinations of all 5 years were satisfying. Further analysis for the test questions revealed that the percentile of high-quality questions increased from 59. 09% （ Grade 2006 ） to 88.89% （Grade 2010）, and overall 72. 17% questions reaehed the criteria of high quality. The quality of test questions were significantly improved in terms of difficulty and discrimination when comparisons were made between those from Grade 2010 vs. Grade 2006. Conclusions The overall quality of examinations for all 5 years are high, with the quality of test questions improved eontinueusly. However, there are still problems remained to be solved. The evaluation of examinations will provide critical indieations for the future improvement of teaching quality and eonstruction of a reliable question Tank for histology examination.