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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2009
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| Online Access: | https://www.redalyc.org/articulo.oa?id=89912230002 |
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Table of Contents:
- Optimality Criteria for Models with Random Effects Tisha Hooks David Marx Stephen Kachman Jeffrey Pedersen Física, Astronomía y Matemáticas Mixed model Optimal design Information matrix Nuisance parameter Covariance structure In the context of linear models, an optimality criterion is developed for models that include random effects. Traditional information-based criteria are premised on all model effects being regarded as fixed. When treatments and/or nuisance parameters are assumed to be random effects, an appropriate optimality criterion can be developed under the same conditions. This paper introduces such a criterion, and this criterion also allows for the inclusion of fixed and/or random nuisance parameters in the model and for the presence of a general covariance structure. Also, a general formula is presented for which all previously published optimality criteria are special cases. 2009 artículo científico 0120-1751 https://www.redalyc.org/articulo.oa?id=89912230002 en http://www.redalyc.org/revista.oa?id=899 Revista Colombiana de Estadística application/pdf Universidad Nacional de Colombia Revista Colombiana de Estadística (Colombia) Num.1 Vol.32