摘要
本文在多项选择题观察分数Ｚ等于真实分数Ｙ与随机猜测分数Ｘ之和的假设模型下，给出了真实分数Ｙ关于观察分数Ｚ的回归函数，即真实分数Ｙ的最优估计函数。
On the basis of the Multiple Choice test score model that the observed score Z is the sum of true score Y and the guessed score X, this paper discussed the regressive function μ y|z which is the best estimate of Y on Z. Three estimate methods were compared with the life test date used in this paper.
出处
《数理统计与管理》
CSSCI
北大核心
1996年第4期19-25,共7页
Journal of Applied Statistics and Management
关键词
多项选择题
真实分数
观察分数
回归函数
估计
Multiple Choice item
true score
observed score
gussed score
regressive function
