尺度参照语言测试的基本描述和题项分析

Basic Descriptive and Item Analysis for Criterion-referenced Test

通过分数分布、题项分析及CRT题项分析说明语言测试中的CRT和NRT是一对具有本质不同的两种测试 ,从对区分熟练组与非熟练组考生和检测考生对掌握知识及教学目的是否达到教学大纲要求等方面 ,CRT更胜于NRT。文章同时提出目前对多数从事语言教学的教师来说还是比较陌生的切线指标分析方法 ,不但可以用于检测判别学生的成绩 ,还可以检测教师所教内容与学生确实已吸收知识之间的适度值。

CRT is most useful to classroom teachers and curriculum developers because CRTs are specifically designed to assess how much of the content in a course or program is being learned by the students. However, during the past decade, most language testing experts have focused almost exclusively on norm-referenced testing and have ignored CRT. The paper discriminates the inner difference between NRT and CRT by analyzing their basic descriptive and item analysis in order to have testers and teachers pay more attention to CRT. Meanwhile, CRT can also diagnose strengths and weaknesses of students facing the goals and objectives of a particular course or program by means of calculating B-index, agreement statistic and item phi.