This paper is divided into three chapters, the content is as follows: chapter I simply introduces the model of the item response theory and some useful methods of parameter estimation.
本论文共分三章，主要内容安排如下：第一章简单介绍了项目反应理论模型和几种常见的参数估计的方法。
This paper is divided into three chapters, the content is as follows: chapter I simply introduces the model of the item response theory and some useful methods of parameter estimation.
本论文共分三章，主要内容安排如下：第一章简单介绍了项目反应理论模型和几种常见的参数估计的方法。
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