| 矩阵维度对Kappa作弊甄别方法性能的影响 |
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| 引用本文： | 孔祥.矩阵维度对Kappa作弊甄别方法性能的影响[J].考试研究,2013(6):54-58,53. |
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| 作者姓名： | 孔祥 |
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| 作者单位： | 北京语言大学考试安全研究中心,北京100083 |
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| 摘 要： | 本文通过对Kappa作弊甄别方法中顺序量表的4％4矩阵算法进行优化，研究矩阵维度的变化对Kappa方法甄别率及I型错误率的影响，并提出用于比较甄别性能的KX系数及基于矩阵维度选择算法的Kappa-X作弊甄别方法。
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| 关 键 词： | Kappa Kappa-X 矩阵 作弊 甄别率 I型错误率 |
The Influences of Matrix Dimension on the Performance of Kappa |
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| Kong Xiang.The Influences of Matrix Dimension on the Performance of Kappa[J].Examinations Research,2013(6):54-58,53. |
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| Authors: | Kong Xiang |
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| Institution: | Kong Xiang( Bering Language and Culture University, Beijing , 100083) |
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| Abstract: | This article investigates the effectiveness, caused by the change of dimensions, to the detection rate and Type I error rate of Kappa approach. The approach used in this study is to optimize the 4 ＊ 4 matrix calculating method for ordinal scaling of Kappa. This article also presents KX index, a new index for comparing the detecting efficiency, and the detecting procedure for Kappa-X which chooses the calculating method based on the dimensions of the matrix. |
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| Keywords: | Kappa Kappa-X Matrix Answer Copying Detection Rate Type I Error Rate |
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