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A survey and evaluation of methods for determination of combinatorial equivalence of factorial designs

By T.I. Katsaounis and A.M. Dean

Abstract

Equivalent factorial designs have identical statistical properties for estimation of factorial contrasts and for model fitting. Non-equivalent designs, however, may have the same statistical properties under one particular model but different properties under a different model. In this paper, we describe known methods for the determination of equivalence or non-equivalence of two-level factorial designs, whether they be regular factorial designs, non-regular orthogonal arrays, or have no particular structure. In addition, we evaluate a number of potential fast screening methods for detecting non-equivalence of designs. Although the paper concentrates mainly on symmetric designs with factors at two levels, we also evaluate methods of determining combinatorial equivalence and non-equivalence of three-level designs and indicate extensions to larger numbers of levels and to asymmetric designs

Topics: HA
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:339782
Provided by: e-Prints Soton
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