项目反应理论在构建标准化考试题库系统中的应用

用项目反应理论编制标准化考试题库系统，旨在探究教育测量的新理论应用，为学科教育评价提供辅助工具。题库以四年级数学为测验内容，按标准化编制项目施测、评分、分析，其中选用三参数的逻辑斯蒂克模型，并用贝佳法检验了测验的单纬性，利用ANOTE软件估计项目参数，用基于题目分类下的经验判断法建立一个划界分数，接合项目信息量组成题库，最后讨论了能力估计方法、抽题策略、结束控制等题库编制的关键技术。

Application of Item Response Theory in Constructing the Standardized Examination Question Bank System

The object is to design the standardized examination questions bank and provides a subsidiary tool to subject study under the Item Response Theory （IRT）. This paper intends to take the mathematics per- formance of Grade Four as an example to write, implement, score, analyze by standardized way, and the Three-parameter Logistic Model was employed. The Bejar method was carried out on the data collection; the parameter was evaluated by ANOTE software. The experience judgment method was established to obtain the cut-off score. The items were finally selected to constitute the item storage and the examination questions bank was done. At last, key discussion is given about how to estimate the participant capacity, how to select item, how to end and so on.