RESEARCH ARTICLE


On a Preferred Design in Regression



D. R. Jensen, D. E. Ramirez*
Department of Mathematics, University of Virginia, Charlottesville, VA 22903, USA.


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© 2014 E. Ramirez et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Mathematics, University of Virginia, Charlottesville, VA 22903, USA. Tel: 434-924-4934; Fax: 434-982-3084; E-mail: der@virginia.edu


Abstract

Corrections are given to common misconceptions regarding the use of centered and uncentered regressors, and of meanings to be ascribed to A –, D– and E –criteria in evaluating two such designs.

Keywords: Correction, centered and uncentered regressors, design preference.