Limits on Log Odds Ratios for Unidimensional Item Response Theory Models

被引：0

作者：

Shelby J. Haberman

Paul W. Holland

Sandip Sinharay

机构：

[1] Educational Testing Service,Center for Statistical and Psychometrical Theory and Practice

来源：

Psychometrika | 2007年 / 72卷

关键词：

Rasch model; 2PL model; normal ogive model; cumulant generating function;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Bounds are established for log odds ratios (log cross-product ratios) involving pairs of items for item response models. First, expressions for bounds on log odds ratios are provided for one-dimensional item response models in general. Then, explicit bounds are obtained for the Rasch model and the two-parameter logistic (2PL) model. Results are also illustrated through an example from a study of model-checking procedures. The bounds obtained can provide an elementary basis for assessment of goodness of fit of these models.

引用

页码：551 / 561

页数：10

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