IRT多级评分项目的参数估计及其在测验中的应用
Parameters Estimation of IRT Multicategory Scoring Item
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摘要: 木文的主要目的是解决IRT多级评分项目的参数估计问题,木文取得了如下成果:1)提出了一种简捷而有效的多级评分项目的参数解法;2)对该方法的概率收敛性进行了证明;3)编制了参数计算软件,并通过一个实例对该方法的正确性进行了验证;4)该解法的推广。Abstract: The target of the paper is to solve the parameters estimate problem of IRT multicategory scoring item. The main achievement of the paper as follow: 1) Gave a parameters estimate method of IRT multicategory scoring item; 2) Proved the probability convergence of the method; 3) Edited tile program of parameters estimation and discussed the applications by a example; 4) The extension of the method.