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.

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预试，依据测验的项目区分度、信度和效度评价结果修改测验；

Sixth, pre-test, analysis item differential validity, test reliability and validity, then amend the test.

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结论：海洛因依赖性人格的概念的构想合理，其量表具有良好的项目区分度、内部一致性信度和效度。

Conclusion: Heroin dependent personality was constructed rationally, and the scale based on the structure demonstrated adequate internal consistency, satisfactory item validity and construct validity.

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