基于WEB的英语计算机化调适性语言测试中难度值的调整方法

Regulating Method of the Toughness of Questions in English Computerized Adaptive Language Test on WEB

在英语的计算机化调适性语言测试中,题库内题目难度的确定需要通过每次测试逐渐进行调整。本文通过建立精确的数学模型,利用极大似然法对题目难度系数进行自动调整,并采用基于WEB的ASP Script语言描述了难度值的调整方法。实践证明,该方法可靠有效。

Generally,the toughness of questions in English adaptive test bank is decided gradually through repetitive regulations each time when the test is conducted.By setting up a precise math module,and in light of the rule of maximal iconicity,this paper uses the WEB-based ASPScript language to show how to realize automation of the regulations.Practice has proved that this method is effective and reliable.