多重选择题难度的估计方法

THE ESTIMATE METHODS OF THE DIFFICULTY FOR MULTIPLE CHOICE TEST QUESTIONS

本文在多重选择题的得分等于真实分数与猜测分数之和的假设下,对多项选择题的难度进行了分析,得到了多项选择题难度的点估计、区间估计和贝叶斯估计,并通过实例说明这些估计方法在试题难度分析中的应用。

On the basis of the multiple choice test questions score model that the observed score is the sum of true score and the guessed score, the difficulty for Maltiple choice test questions is analysed and the point , interval and Baycsion estimations of the difficuly are obtained in this paper. Simultaneously, the application of these methods in analysis of difficulty for test questions are illustractcd with some examples.