| 引入曝光因子的计算机化自适应测验选题策略 |
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| 引用本文： | 程小扬,丁树良,严深海,朱隆尹.引入曝光因子的计算机化自适应测验选题策略[J].心理学报,2011,43(2):203-212. |
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| 作者姓名： | 程小扬 丁树良 严深海 朱隆尹 |
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| 作者单位： | (;1.江西师范大学计算机信息工程学院, 南昌 330027) ;(;2. 赣南师范学院数学与计算机科学学院, 赣州 341000) ; |
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| 基金项目： | 国家自然科学基金，江西省教育厅青年科学基金，全国教育考试"十一五"科研规划课题，教育部人文社科项目，江西省高等学校教学改革研究课题 |
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| 摘 要： | 在计算机化自适应测验(CAT)的研究中, 制定既高效又安全的选题策略是一个追求目标。用极大项目信息量准则(MIC)选题使得测验效率高、能力估计准确, 缺点是项目调用很不均匀, 影响考试的安全; 按a分层法通过控制试题曝光率以提高考试的安全性, 但该方法可能会使测验效率略有下降, 且该方法在各层内部无法实现对区分度的调整。本文针对上述两种选题策略的优缺点, 对0-1评分下的CAT, 通过引入曝光因子、分阶段自动调整区分度的影响以及提高选题准确性等手段, 对MIC和a-STR进行改进, 引入了两类新的选题策略。计算机模拟实验显示, 新的选题方法效果比较理想。
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| 关 键 词： | 曝光因子 计算机化自适应测验 选题策略 3PLM |
| 收稿时间： | 2010-4-12 |
New Item Selection Criteria of Computerized Adaptive Testing with Exposure-Control Factor |
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| CHENG Xiao-Yang,DING Shu-Liang,YAN Shen-Hai,ZHU Long-Yin.New Item Selection Criteria of Computerized Adaptive Testing with Exposure-Control Factor[J].Acta Psychologica Sinica,2011,43(2):203-212. |
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| Authors: | CHENG Xiao-Yang DING Shu-Liang YAN Shen-Hai ZHU Long-Yin |
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| Institution: | (;1.Computer Information Engineer College, Jiangxi Normal University, Nanchang 330027, China) ;(;2.College of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, China) ; |
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| Abstract: | As far as Computerized Adaptive Testing (CAT) is concerned, the issue of item selection strategy has received more attention because of its vital role. It is well known that there are two typical selection strategies called Maximum Information Criterion (MIC) and a-Stratification (a-STR). However, both of the two strategies have their advantages together with their downsides. On the one hand, MIC method can obtain high efficiency and accurate estimation of ability; on the other hand, its uneven item selecti... |
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| Keywords: | 3PLM |
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