目的：初步编制7～9年级数学成就测验，通过项目分析，信、效度检验等标准化过程。

Objective:The Mathematical Achievement Tests of the 7 ~ 9 Grades(the MATs) were formed, the items were analyzed, and the reliability and validities were tested.

youdao

目的：初步编制7～9年级数学成就测验，通过项目分析，信、效度检验等标准化过程。

Objective:The Mathematical Achievement Tests of the 7 ~ 9 Grades(the MATs) were formed, the items were analyzed, and the reliability and validities were tested.

youdao