| DIF比例与纯化方式对LRDIF检测方法的影响研究 |
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| 引用本文： | 朱乙艺. DIF比例与纯化方式对LRDIF检测方法的影响研究[J]. 考试研究, 2014, 0(2): 54-58 |
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| 作者姓名： | 朱乙艺 |
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| 作者单位： | 福建省普通教育教学研究室基础教育质量监测办公室,福建福州350003 |
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| 摘 要： | 本模拟研究的目标组与参照组的项目作答反应数据是通过Rasch模型产生的,模拟研究探讨了LRDIF检测方法在不同DIF比例和纯化方式下的检测效果。研究结果表明:LRDIF方法的检测结果在DIF比例≤40%时是可信的;当采用LRDIF方法进行DIF检测时,有必要对匹配变量进行纯化,最好是能够进行迭代纯化。
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| 关 键 词： | DIF比例 纯化方式 LRDIF方法 项目功能差异 |
Effects of DIF Proportion and Purification Type on Robustness and Power of LRDIF Procedure |
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| Zhu Yiyi. Effects of DIF Proportion and Purification Type on Robustness and Power of LRDIF Procedure[J]. Examinations Research, 2014, 0(2): 54-58 |
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| Authors: | Zhu Yiyi |
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| Affiliation: | Zhu Yiyi (Education Quality Assessment Office, General Education-teaching Research Laboratory of Fufian Province, Fuzhou, Fujian, 350003) |
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| Abstract: | In this simulation study, the detection effects of LRDIF procedure under conditions of various DIF proportions and purification types were studied. The results show that： it is reliable to use LRDIF procedure to detect DIF when DIF proportion is not more than 40% ; when using LRDIF procedure, it is necessary to purify matching variable and it is best to conduct iterative purification. |
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| Keywords: | DIF Proportion Purification Type LRDIF Procedure Differential Item Functioning |
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