基于IRT的大学英语词汇在线自适应测试系统的设计  

The Design of IRT-Based Online Adaptive Testing System for College English Vocabulary

作　　者：赵传海[1] 吴敏[1] 叶艳[1] 

机构地区：[1]中国科学技术大学现代教育技术中心,安徽合肥230026

出　　处：《现代教育技术》2008年第12期87-90,共4页Modern Educational Technology

摘　　要：如何科学有效地测量学习者的词汇量,以及测量其对词汇的掌握程度是当前语言研究者十分关注的问题。文章根据词汇的广度、深度之间的相关性,提出了在广度测试的基础上进行深度测试的思想,并将项目反应理论的测试方法、设计思想,应用到实际测试系统中,最终设计实现了基于项目反应理论的大学英语四、六级在线自适应单词测试系统。How to measure learners＇ breadth of vocabulary scientifically and the depth in mastering vocabulary is a major issue which many language researchers are focusing on currently. This article introduces the correlation between the breadth and depth of vocabulary, and presents the idea of measuring the depth of vocabulary based on the measurement of breadth. Finally the online adaptive vocabulary testing system is achieved for College English Band-4 and Band-6, by applying the testing method of Item Response Theory （IRT） and design thoughts to practical testing system.

关 键 词：词汇测试 广度测试 深度测试 IRT 单词库 

分 类 号：G434[文化科学—教育学]