在线测试对提高统计图表认知与理解能力的调查分析  

Investigation and analysis of online testing to improve the cognition and comprehension of statistical charts

作　　者：孙红卫[1] 王玖[1] 韩春蕾[1] 刘海霞[1] 张中文[1] 张俊 李开心 Sun Hongwei;Wang Jiu;Han Chunlei;Liu Haixia;Zhang Zhongwen;Zhang Jun;Li Kaixin(Department of Health Statistics,Binzhou Medical University,Yantai 264003,China;Yantai Affiliated Hospital of Binzhou Medical University,Yantai 264003,China)

机构地区：[1]滨州医学院卫生统计学教研室,山东烟台264003 [2]滨州医学院烟台附属医院,山东烟台264003

出　　处：《中国医院统计》2022年第6期466-471,共6页Chinese Journal of Hospital Statistics

基　　金：全国统计科学研究项目(2020LY070)。

摘　　要：目的调查医学院大学生对统计指标和统计图表的认知理解情况,旨在考查在线测试工具在提高学生统计图表理解能力方面的作用。方法调查对象为山东省某医学院校在读的统计学、临床医学、麻醉学、影像学、检验学等专业大学生。通过线上问卷的方式进行调查(调查问卷的网址,测试一:https://ks.wjx.top/jq/92107364.aspx,测试二:https://ks.wjx.top/jq/92106453.aspx),分别采用频数、率和均数来描述定性资料和定量资料,并采用配对t检验或秩和检验进行统计分析。结果546人完成测试一,476人完成测试二。发现相当一部分学生对于基本统计图表的理解错误,70%的医学生对于2个分组因素构成比理解有误,50%的医学生对于1个分组因素的构成比理解有误,30%~50%的医学生对于率的理解、病死率和死亡率的区别,以及散点图展现的相关关系理解有误。结论统计图表的理解和掌握如果仅通过课堂讲解的方式,由于学时的限制无法达到准确理解的目标。通过在线测试的方式,设计案例、设计题目,再结合答案解析的方式,可以在有限的学时内将这部分知识掌握好。Objective To investigate the cognitive understanding of medical college students on statistical indicators and statistical charts,and to examine the effect of online testing tools on improving students′ability to understand statistical charts.Methods The subjects were undergraduates majoring in statistics,clinical medicine,anesthesiology,imaging and laboratory science in a medical university.The survey was conducted by online questionnaire(questionnaire url,test one:https://ks.wjx.top/jq/92107364.aspx,test two:https://ks.wjx.top/jq/92106453.aspx).Frequency,rate and mean were used to describe qualitative and quantitative data.Quantitative data were compared by paired t test or rank sum test.Results Five hundred and forty-six students completed test one and 476 completed test two.We found that quite a few students were wrong about basic statistical charts.And 70%of medical students misunderstood the composition ratio of the two grouping factors,while 50%of medical students misunderstood the constituent ratio of a grouping factor.Between 30%and 50%of medical students misunderstood the rate,the difference between case mortality and mortality,and the correlation shown in the scatter plot.Conclusion If statistical charts can only be understood and mastered by classroom explanation,due to the limitation of class hours,the goal of accurate understanding can not be achieved.Through online testing and cases,combined with answer analysis,this part of knowledge can be mastered in a limited period of time.If students only understand and master statistical charts through classroom explanation,they cannot achieve the goal of accurate understanding due to the limitation of class hours.In the ways of online tests and the design of cases and questions,combined with the way of answer analysis,can students master this part of knowledge in a limited period of time.

关 键 词：统计图表 在线测试 认知能力 理解能力 

分 类 号：R195.1[医药卫生—卫生统计学]