Optimal Foldover Plans for Two-Level Fractional Factorial Split-Plot Designs

• Autores: Robert G. McLeod, John F. Brewster
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 40, Nº. 2, 2008, págs. 227-240
• Idioma: inglés
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• Resumen

  • The foldover technique is useful as a follow-up strategy when the objective is to de-alias effects of interest after the initial fractional factorial split-plot design has been run. The resulting combined design is a blocked fractional factorial split-plot design. Using the minimal aberration criterion for blocked fractional factorial split-plot designs, a catalog of optimal foldover plans is provided for initial minimal aberration fractional factorial split-plot designs of 16 and 32 runs.