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Testing Variance Components in Mixed Models With Generalized p Values

Samaradasa Weerahandi
Journal of the American Statistical Association
Vol. 86, No. 413 (Mar., 1991), pp. 151-153
DOI: 10.2307/2289724
Stable URL: http://www.jstor.org/stable/2289724
Page Count: 3
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Testing Variance Components in Mixed Models With Generalized p Values
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Abstract

A procedure for testing one-sided hypotheses on variance components in a balanced random effects model is developed. The testing is performed on the basis of a generalized p value and involves a one-dimensional numerical integration. In the special case for which the conventional methods provide an exact test, this test is equivalent to the usual F test. The test is also generalized Bayes in the sense that, under a certain diffuse prior, the p value is numerically the same as the posterior probability of the null hypothesis.

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