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Foldovers of 2k-p Resolution IV Experimental Designs

Summary: Two simple rules are used to develop foldovers for 2k-p fractional factorial designs. Although the rules are general, our focus is on foldovers for resolution IV designs. Foldovers that sign-reverse more than one factor can generate alias sets that cannot be obtained from a sign-reversal of a single factor. The potential alias structure can be limited by widely-used statistical software. An example illustrates the interplay of the rules and information from active alias sets in the original fractional experiment.

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  • Topics: Design of Experiments
  • Keywords: Alias,Sequential experiment,Fractional factorial design,Factorial designs
  • Author: Montgomery, Douglas C.; Runger, George C.
  • Journal: Journal of Quality Technology