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April 2013

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Subject:
From:
Yunpeng Zhao <[log in to unmask]>
Reply To:
Yunpeng Zhao <[log in to unmask]>
Date:
Mon, 8 Apr 2013 10:39:09 -0400
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Seminar Announcement

*
------------------------------
*

*Decision-theoretic aspects of meta-analysis *

*Andrew L. Rukhin *

*Statistical Engineering Division*

*National Institute of Standards and Technology*

*Engr 4201 (Computer science conference room)  *

* 4400 University Drive, Fairfax, VA 22030***

*Time: 11:00 A.M. - 12:00 P.M.***

*Date: Friday, Apr 12, 2013 ***

* *

*Abstract*

Decision-theoretic approach is applied to the random-effects model of
meta-analysis.

A canonical representation of the restricted likelihood function is
obtained. The relationship between the mean effect estimators and the
heterogeneity variance estimators is explored via this representation. An
explicit form of the variance of weighted means statistics  determined by
means of a quadratic form is found. The behavior of the mean squared error
for large heterogeneity variance is elucidated. It is noted that the sample
mean is not admissible nor minimax when the number of studies is larger
than three.


-- 
Yunpeng Zhao, PhD

Assistant Professor
Department of Statistics
Volgenau School of Engineering <[log in to unmask]>
George Mason University
Engineering Building, Room 1719, MS 4A7
4400 University Drive
Fairfax, VA 22030-4444

Phone: 703-993-1674
Email: [log in to unmask]


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