| 一种提升题库安全性的选题策略 |
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| 引用本文： | 贺 翔,罗 芬,甘登文,丁树良,汪文义.一种提升题库安全性的选题策略[J].江西师范大学学报(自然科学版),2016,40(4):363-368. |
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| 作者姓名： | 贺 翔 罗 芬 甘登文 丁树良 汪文义 |
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| 作者单位： | 江西师范大学计算机信息工程学院,江西 南昌 330022 |
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| 摘 要： | 题库的安全性是实施计算机化自适应测验的关键问题.受原有的动态a分层方法和均值不等式启发,构造了动态a分层的选题策略.模拟实验结果表明:新的选题策略保持了原有动态a分层的测验精度,进一步提高了测验的安全性.
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| 关 键 词： | 项目信息量 区分度 选题策略 |
The Item Selection Strategy of Raising Item Pool Security |
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| HE Xiang,LUO Fen,GAN Dengwen,DING Shuliang,WANG Wenyi.The Item Selection Strategy of Raising Item Pool Security[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2016,40(4):363-368. |
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| Authors: | HE Xiang LUO Fen GAN Dengwen DING Shuliang WANG Wenyi |
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| Institution: | College of Computer Information and Engineering,Jiangxi Normal University,Nanchang Jiangxi 330022,China |
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| Abstract: | The safety of item pool is the key point to the implementation of computerized adaptive test,inspired by the original dynamic a-stratified method and mean inequality,constructing another item selection strategy of the dynamic a-stratified.The simulation experimental results showed that the new item selection strategy to keep the test precision of the original dynamic a-stratified method,and further improves the security of the test. |
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| Keywords: | item information discrimination item selection strategy |
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