## Abstract In many applications of generalized linear mixed models to clustered correlated or longitudinal data, often we are interested in testing whether a random effects variance component is zero. The usual asymptotic mixture of chi‐square distributions of the score statistic for testing const
✦ LIBER ✦
U-tests for variance components in linear mixed models
✍ Scribed by Juvêncio S. Nobre, Julio M. Singer, Pranab K. Sen
- Book ID
- 120949730
- Publisher
- CrossRef test prefix
- Year
- 2013
- Tongue
- English
- Weight
- 841 KB
- Volume
- 22
- Category
- Article
- ISSN
- 1234-5678
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In mixed linear models with two variance components, classes of estimators improving on ANOVA estimators for the variance components and the ratio of variances are constructed on the basis of the invariant statistics. Out of the classes, consistent, improved and positive estimators are singled out.