基于项目反应理论的自适应考试系统设计  

Design of computerized adaptive testing system based on item response theory

作　　者：吕岚[1] 

机构地区：[1]陕西铁路工程职业技术学院机电工程系,陕西渭南714000

出　　处：《陕西理工学院学报（自然科学版）》2013年第2期50-54,共5页Journal of Shananxi University of Technology:Natural Science Edition

基　　金：陕西铁路工程职业技术学院科研基金资助项目(2012-13)

摘　　要：针对传统考试的缺点和不足,介绍了项目反应理论基本概念,在此基础上结合计算机网络技术的发展提出了计算机自适应考试系统的设计。并进一步阐述了系统的体系结构,各功能模块的设计,重点改进了按区分度的选题策略,有效地控制试题曝光率。能够根据不同能力被测试者随机选择试题项目,减少了测试长度,与传统在线考试系统相比提高了考试效率。This paper introduces the basic knowledge and limitations of traditional test theory, and de- scribes the basic concept of item response theory （IRT）. Then computerized adaptive testing system is put for- ward with the combination of the rapid development of computer network technology. It specifically dicusses the structure, functions of the module of system. The system greatly improves the item selection strategy and reduce the probability of item exposure. Additionally, it reduces testing length by random item selection auording to testee competence level, thus improving test efticiently compared with traditional on-line testing system.

关 键 词：自适应考试系统 项目反应理论 选题策略 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]