7-9年级语文、数学单科标准化成就测验的编制

Development of Single-subject Chinese and Mathematics Achievement Tests for Grade 7-9

目的:编制7～9年级语文、数学单科标准化成就测验。方法:在多次试测基础上形成正式测本,采用分层和整群抽样方法,抽取语文样本1008人和数学样本1018人作项目分析,另有一定数量的被试用作信、效度估计及学科专家作内容效度评定。结果:语、数75%的项目难度为0.20～0.80,88%以上的项目鉴别力达到可接受水平,各分测验在各年级和总测验的D值均在0.50以上。语文测验总分的复本信度、分半信度在0.74～0.87之间,数学测验总分的各信度值在0.73～0.88之间。语数A、B题本总分与学科成绩相关为0.47～0.69,探索性因素分析语数各抽取2因素模型为佳,验证性因素分析结果表明两因素模型拟合较佳。结论:7-9年级语、数单科成就测验符合测量学的要求。

Objective： To develop single-subject Chinese and Mathematics achievement tests for grade 7-9（CATs, MATs）. Methods： According to stratified and cluster sampling, a total of 1008 CATs and 1018 MATs samples were tested in the formal study. Results ： The difficulties of 75% CATs and MATs items ranged from 0.20-0.80. The discriminations of 88% items were acceptable. The parallel reliability, split-half reliability and coefficient of the total scores of Chinese test ranged from 0.73-0.88, and the reliabilies of the total scores of the MATs were 0.73-0.88. The correlations between total scores of CATs or MATs and those of the academic performance were 0.47-0.69. Two-factor models of the CATs and MATs were obtained by exploratory and confirmatory factor analysis. Conclusion： The CATs and MATs have good psychometric quality.