计算机自适应考试系统研究

Research and Exploration on Computerized Adaptive Testing System

本文结合专家经验确定法和项目反应理论,设计出一种简明、实用的计算机自适应考试系统的试题难度确定方法,同时重点分析计算机自适应考试系统的测试起点、终点选择,选题策略和能力值估计方法。最后列举了一个自适应测试的步骤实例。本系统能够根据不同能力被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。

Combined with expert experience determination method and item response theory,this thesis designs a simple,practical computer adaptive test system of the item difficulty method,with a focus on analysis of computerized adaptive testing system starting point,end point,strategy of selecting topics and the ability to value estimation method.And it is shown by examples of the step taken by the computer adaptive test system.This system can select item randomly according to the different ability of subjects,reduce the length of the test item,and improve the test efficiency compared with traditional online examination system.