Rukhin, A.
(2014),
Restricted Likelihood Representation for Multivariate Heterogeneous Random Effects Models, Linear Algebra and Its Applications, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=914696
(Accessed October 8, 2025)
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Restricted Likelihood Representation for Multivariate Heterogeneous Random Effects Models
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Abstract
In the random-effects model of meta-analysis for heterogeneous multidimensional data a canonical representation of the restricted likelihood function is obtained. This representation is related to a linear data transform which is based on the algebraic characteristics of error covariance matrices. The relationship between the heterogeneity covariance matrix estimators and the mean effect estimators is explored. It is noted that the sample mean exhibits the Stein-type phenomenon being an inadmissible estimator of the effect size under the quadratic loss when the number of studies exceeds three.Citation
Linear Algebra and Its Applications
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Journals
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Keywords
DerSimonian-Laird procedure, Confidence regions, Inadmissibility, Maximum likelihood, Meta-analysis, Polynomial roots, Stein effect, Variance components.
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Created January 31, 2014, Updated January 27, 2020