多级评分的Bayes估计

The Bayesian Estimates of Multi-grade Scoring Model

对多级评分的测验题型,给出了其Bayes模型,把先验分布从无信息先验推广到了更一般的Dirichlet先验分布情形,求出了参数的Bayes估计,指出了其意义。

This paper deals with the Bayesian Model of multi-grade scored items. The prior distribution is generalized from non-information to what is more generally known as Dirichlet. The Bayesian estimates are provided with their significance. The estimates of super-parameters of prior distribution are also given under different sample conditions.