Generalized Graded Unfolding model (GGUM) is an IRT model developed to solve this problem in personality.
广义等级展开模型GGUM就是针对这一机制提出来的。
The first problem that the system faces: as IRT theory model is imposed severer basic assumptions, so large groups of samples are needed to build the Item bank.
本系统解决的第一个问题是：IRT理论模型有较严苛的基本假设，因此需要建设大样本配合的题库。
Item Response theory (IRT), as the base of CAT, is a theory of measurement based on mathematical model.
项目反应理论是CAT的基础，项目反应理论是一种建立在某种数学模型基础上的测量理论。
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