科学评价研究生入学考试:一种基于数理分析的方法

研究生入学考试成绩分布情况受很多因素影响,有命题难易度和分值搭配的问题,有命题重点是否存在重复的问题,还有每年生源质量不一的问题等等。运用数理统计的方法,简化分析环节,采用一套新的指标,对某高校的研究生入学考试专业课成绩进行了统计分析。文中对于偏态系数的重新定义,是一个更能准确反映出考试成绩偏态分布的参数,在此定义基础上利用统计计算功能就可以顺利计算出各统计量。为了能够反映考生考试成绩的整体情况,不对每一个考试科目进行具体分析,仅将考生按照文理科分类,将每个考生的两门专业成绩合计进行统计分析。提出的这种数理分析方法,希望能够为命题质量分析提供一个新的角度和手段,为切实提高研究生入学考试命题质量,做好研究生招生提供客观依据。

Evaluating scientifically postgraduate entrance test: a statistical method

The distribution of results of postgraduate entrance test is affected by many factors,such as arrangement of difficulty and score,key question overlap,quality of students and so on.This paper measured and analyzed the results of their special lessons of some university with a set of new indexes by statistical method.The parameter,skewed distribution,defined in this paper could explain the distribution of test results more accurately,could be used to compute the statistical variables easily.This paper will divide all the examinees into two groups: the art and the science,incorporate their two special lessons into one at the same time.In the end,this paper emphasized particularly on statistical analysis,and didn't make more deep discussion.It may be a new and useful method for analyzing the quality of postgraduate entrance test,and could supply valid and scientific data and base.