Open Access
December 2009 Decomposition tables for experiments I. A chain of randomizations
C. J. Brien, R. A. Bailey
Ann. Statist. 37(6B): 4184-4213 (December 2009). DOI: 10.1214/09-AOS717


One aspect of evaluating the design for an experiment is the discovery of the relationships between subspaces of the data space. Initially we establish the notation and methods for evaluating an experiment with a single randomization. Starting with two structures, or orthogonal decompositions of the data space, we describe how to combine them to form the overall decomposition for a single-randomization experiment that is “structure balanced.” The relationships between the two structures are characterized using efficiency factors. The decomposition is encapsulated in a decomposition table. Then, for experiments that involve multiple randomizations forming a chain, we take several structures that pairwise are structure balanced and combine them to establish the form of the orthogonal decomposition for the experiment. In particular, it is proven that the properties of the design for such an experiment are derived in a straightforward manner from those of the individual designs. We show how to formulate an extended decomposition table giving the sources of variation, their relationships and their degrees of freedom, so that competing designs can be evaluated.


Download Citation

C. J. Brien. R. A. Bailey. "Decomposition tables for experiments I. A chain of randomizations." Ann. Statist. 37 (6B) 4184 - 4213, December 2009.


Published: December 2009
First available in Project Euclid: 23 October 2009

zbMATH: 1191.62139
MathSciNet: MR2572457
Digital Object Identifier: 10.1214/09-AOS717

Primary: 62J10
Secondary: 62K99

Keywords: Analysis of variance , Balance , decomposition table , Design of experiments , efficiency factor , multiphase experiments , multitiered experiments , Orthogonal decomposition , pseudofactor , structure , tier

Rights: Copyright © 2009 Institute of Mathematical Statistics

Vol.37 • No. 6B • December 2009
Back to Top