The methods applied in data analysis are the analysis of item characteristic curve, item information function, test information function and item validity, as well as the checking of biased items.
质量评估的主要方法是对项目特征曲线、项目信息函数、测验信息函数、项目预测效度的分析和对项目偏差的检测。
Conclusion: Heroin dependent personality was constructed rationally, and the scale based on the structure demonstrated adequate internal consistency, satisfactory item validity and construct validity.
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。
Sixth, pre-test, analysis item differential validity, test reliability and validity, then amend the test.
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；
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