运用项目反应理论改进英语学业考试的评分方法  

Improving the Scoring Procedures of an English Achievement Test with Item Response Theory

作　　者：陈芳[1] 毕笑楠[2] 

机构地区：[1]华东师范大学英语系 [2]上海市教育考试院

出　　处：《全球教育展望》2013年第5期100-107,99,共9页Global Education

摘　　要：本研究以上海市初中英语学业考试为例,探讨了运用项目反应理论改进考试评分的可行性、合理性和优越性。对比四种能力评分方式,我们发现所得考分的信度高度一致且所有信度指数都高于0.9。卡帕系数也体现了以不同考分为基础的毕业和选拔决策的一致性。这些都体现了运用项目反应理论的可行性。考分和测量误差的分布以及与国外两个研究结果的对比则验证了项目反应理论在常规考试实践中的合理性和优越性。This study aims to demonstrate the feasibility, appropriateness and superiority of Item Response Theory to improve scoring procedures for an achievement test. Reliability coefficients of the test scores based on four different methods are found to be very close to each other and are all over . 90. Kappa coefficients confirm consistent decisions based on the test scores and provide validity evidence. Comparison to two relevant studies in the US on the distribution of test scores and measurement error further supports the appropriateness and superiority of the Item Response Theory for test scoring.

关 键 词：学业考试 项目反应理论 评分 信度 效度 测量误差 

分 类 号：H310.4[语言文字—英语]