以PETS为例谈Rasch拟合统计量的使用

摘要

Rasch模型已经被广泛的应用于教育测量领域，在考试相关的各个方面都产生了重大的影响。拟合统计量分析是应用Rasch模型的一个重要环节，在Rasch分析中起着关键的作用。本文以PETS为例，介绍了Rasch拟合统计量的特点和类别、实际使用方法及其局限性。%The Rasch model has been widely applied in the field of educational assessment. It has exerted substantial influences on many aspects of testing. Fit statistics analysis is an essential part of the application of the Rasch model. It plays a key role in Rasch analysis. The paper uses PETS as an example to introduce the features, types, actual use, and limitations of the Rasch fit statistics.