计算机自适应性汉语考试的开发

The Development of Chinese Computerized Adaptive Test

我们正在开发一个新型考试,从使用方法和考试形式来说,可称之基于网络的计算机自适应性汉语考试(C-CAT:Chinese Computerized Adaptive Test)。C-CAT的最大特点是,基于项目反应理论(IRT:Item Response Theory)开发,试题自身具有绝对的尺度,计算机自动分配给最适应被试能力的试题,考试过程是一个动态性的,能在短时间内更客观、更准确地测试出被试的能力水平。本文首先根据被试特点,论及了该考试的性格和测试内容框架。之后从理论和实践上探讨了为什么开发,其可能性何在?在此基础上,考察了IRT和CAT在目前一些大规模汉语考试上的应用。最后,在简约地介绍了计算机考试发展的来龙去脉的基础上,阐述了该考试系统设计、特点、C-CAT的构成和优势所在。

We are developing a new type of test, which is called Chinese Computerized Adaptive Test （ C -CAT） due to the methods and forms that it uses. The advantages of C-CAT are distinct and overwhelming. Based on the Item Response Theory （ IRT）, C-CAT can perform as a perfect measure, with computer automatically allocating test items which is in compliance with the examinee＇ s level. It has a dynamic testing process and can estimate objectively and accurately the ability of the examinee in a short time. This paper discusses features and content framework of the test according to the characteristics of the sub- ject, and then explores, theoretically and practically, the reasons and possibility of the development of C -CAT. On this basis, the survey is carried out on the current application of IRT and CAT in some largescale Chinese tests. Finally, the paper introduces briefly the development of the computer-based test and illustrates the design, characteristics, C-CAT structure and advantages of the test system.