期刊文献+

结合优先级指标和曝光因子的多级评分选题策略 被引量:3

The New Item Selection Strategy Combined the Modified Maximum Priority Index with Exposure Factor under Graded Response Model
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摘要 在等级反应模型(GRM)下考察改进的最大优先级指标(MMPI)中引入曝光因子的选题策略与其他选题策略之间的优劣.蒙特卡洛模拟中采用定长CAT,其中能力估计采用贝叶斯期望后验估计(EAP).研究结果表明,MMPI与曝光因子相结合的选题策略,在保证精度的情况下,很大程度上解决了曝光率不均匀问题. The study puts forward a new item selection strategy named MMPI with exposure factor under the graded response model, and Monte Carlo simulation is implemented to compare the superiority between the new item selection strategy and others. The simulation uses fixed-length test with the expected a posterior estima- tion(EAP) for ability estimation. The result shows that the new item selection strategy largely solves the issue of non-uniform exposure under ensuring the accuracy.
出处 《江西师范大学学报(自然科学版)》 CAS 北大核心 2011年第6期646-650,共5页 Journal of Jiangxi Normal University(Natural Science Edition)
基金 国家自然科学基金(30860084 60263005 31160203 31100756) 教育部人文社科学基金(11YJC190002) 全国教育考试"十一五"科研规划2009年度课题(2009JKS2009) 江西省教育厅科学基金(GJJ10238)资助项目
关键词 最大优先级指标 曝光因子 选题策略 计算机化自适应测验 maximum priority index exposure factor item selection strategy computerized adaptive testing
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参考文献11

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二级参考文献41

共引文献72

同被引文献27

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