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Variance components in nested segregated mixed models
by
Sandra Saraiva Ferreira
University of Beira Interior, Portugal
Coauthors: Dário Ferreira, Célia Nunes and João Tiago Mexia
A mixed model has segregation when its fxed effects part is segre gated as a sub-model. We show that, under orthogonality condition, nesting a random effects model inside a segregated mixed model or a segregated mixed model inside a fixed effects model gives a segregated mixed model. We obtain unbiased estimators for the variance components in both classes of models which are UMVUE, once normality is assumed.
Date received: July 22, 2007
Copyright © 2007 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caur-82.