护理本科生医学统计学考试试卷质量测评

目的本研究对北京协和医学院2014级护理本科生的统计学期末考试试卷进行评价分析,为评定护理本科生的教学效果和教学质量提供依据。方法运用教育测量学理论和教育统计学方法对试卷进行评价,采用难度、区分度、信度(Cronbachα系数)和覆盖度对60份医学统计学期末考试试卷进行质量分析。结果该试卷的总分平均为(67.8±12.5)分,最低分38分,最高分95分。选择题、填空题、判断题和计算题的失分率分别为33.8%、37.2%、22.5%和24.8%。难题、较难题、中等难度题、较易题和易题各占30.0%、13.3%、20.0%、20.0%和16.7%,平均难度为0.68。试卷的整体区分度为0.30,30道考题中有28道考题(93.3%)的区分度优秀或良好。试卷的信度为0.71。结论这份考卷具有较好的区分度、信度和总体覆盖度,平均难度也适中,适于护理本科生进行期末测评。此外要从多方面让同学们认识到统计学在医学科学研究中的重要性,增加学习的积极性。

Analysis of the final test paper of medical statisticsin nursing undergraduates from Peking Union Medical College

Objective To learn the overall results of the final test paper in nursing undergraduates of Peking Union Medical College, and to provide the theoretical support for teaching quality assessment of nursing undergraduates.Methods The difficulty coefficient, the discrimination index, the reliability (Cronbach α coefficient) and the degree of coverage were analyzed based on education measurement and education statistical methods.Results The mean total score was 67.8±12.5, ranged from 38 to 95.The difficulty coefficient, the discrimination index and the Cronbach α coefficient were 0.68, 0.30 and 0.71 respectively.The rates of loss score were 33.8% for choice questions, 37.2% for completion questions, 22.5%for true or false questions and 24.8% for calculation questions respectively.Among the total 30 examination questions, the proportions of the most difficult ones, the difficult ones, the moderate ones, the easy ones and the easiest ones were 30.0%,13.3%,20.0%,20.0% and 16.7% respectively.28 examination questions (93.3%) had the best or better discrimination.Conclusions The test paper held the moderate difficulty and the good discrimination, reliability and the degree of coverage.The results of the examination accurately reflect the knowledge and ability of the students.In addition, more attention should be paidto improve the knowledge of nursing undergraduates on the importance of the medical statistics in medical scientific research.