Journal
AMERICAN STATISTICIAN
Volume 61, Issue 4, Pages 360-364Publisher
TAYLOR & FRANCIS INC
DOI: 10.1198/000313007X245122
Keywords
clustered data; correlation structure; generalized estimating equation
Categories
Ask authors/readers for more resources
Efficiency of analysis using generalized estimation equations is enhanced when intracluster correlation structure is accurately modeled. We compare two existing criteria (a quasi-likelihood information criterion, and the Rotnitzky-Jewell criterion) to identify the true correlation structure via simulations with Gaussian or binomial response, covariates varying at cluster or observation level, and exchangeable or AR(l) intracluster correlation structure. Rotnitzky and Jewell's approach performs better when the true intracluster correlation structure is exchangeable, while the quasi-likelihood criteria performs better for an AR(l) structure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available