Tests for independence in a bivariate negative binomial model

被引：0
|
作者：
Sooyoung Cheon
Seuck Heun Song
Byoung Cheol Jung
机构：
[1] Korea University,KU Industry
[2] Korea University,Academy Cooperation Group Team of Economics and Statistics
[3] University of Seoul,Department of Statistics
来源：
Journal of the Korean Statistical Society | 2009年 / 38卷
关键词：
primary 62F03; secondary 62J02; Bivariate negative binomial regression model; Score test; LR test;
D O I：
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中图分类号：
学科分类号：
摘要：
The score test and LR test statistic for testing independence are proposed in a bivariate negative binomial regression model. We also propose an adjusted score test in order to enhance the efficiency of the score test. This study is an extension of the work in a univariate model by Dean and Lawless [Dean, C., Lawless, F. (1989). Tests for detecting overdispersion in Poisson regression models. Journal of the American Statistical Association, 84, 467–472]. The adjusted score test proposed in this study is more efficient than the complicated LR test.
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页码：185 / 190
页数：5
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