A METHOD FOR ASSESSING EXTENT AND SOURCES OF HETEROGENEITY OF RESIDUAL VARIANCES IN MIXED LINEAR-MODELS

被引：56

作者：

FOULLEY, JL

GIANOLA, D

CRISTOBAL, MS

IM, S

机构：

[1] Station de Genetique Quantitative et Appliquee, Institut National de la Recherche Agronomique, Jouy-en-Josas

来源：

JOURNAL OF DAIRY SCIENCE | 1990年 / 73卷 / 06期

关键词：

D O I：

10.3168/jds.S0022-0302(90)78832-7

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

A statistical method is presented for identifying sources of heterogeneity of residual variance in mixed linear models. The method is based on a log-linear model for the residual variances from which parameters can be estimated and hypotheses tested using the marginal likelihood function. It can be viewed as a generalization of Bartlett's test. Computing procedures are presented and an illustration is given. The method can be used with experimental or field data, e.g., to detect possible preferential treatment of daughters of sires or to investigate the possible segregation of major genes. © 1990, American Dairy Science Association. All rights reserved.

引用

页码：1612 / 1624

页数：13

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