ENBIS-17 in Naples

9 – 14 September 2017; Naples (Italy) Abstract submission: 21 November 2016 – 10 May 2017

The Choice of Screening Design

12 September 2017, 09:20 – 09:40

Abstract

Submitted by
Muhammad Azam Chaudhry
Authors
Muhammad Azam Chaudhry (Norwegian University of Science and Technology, Norway), John Sølve Tyssedal (Norwegian University of Science and Technology, Norway)
Abstract
A screening design is an experimental plan used for identifying the expectedly few active factors from potentially many. Normally two-level designs have been the preferred screening designs, but today the practitioners face many alternatives in the choice of a screening design. In addition to regular, nonregular and minresIV two-level designs, it has lately been introduced a fourth class of screening designs, the definitive screening designs which are three-level designs and also allow the estimation of a certain number of quadratic effects. However, which of these designs do actually perform best for screening? Naturally, one has never tested out designs from the four respective classes together in the same practical experimental situation. In this presentation we present the result of a simulation study to compare the screening performances for three designs, a nonregular, a minresIV and a definite screening design under various scenarios, some with quadratic effects present and some without. We end up giving some recommendations and some warnings that we think will be useful for the practitioners in the choice of a screening design for his practical application.

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