Some properties of blocked and unblocked foldovers of 2k-p designs

Kenny Q. Ye, William Li

Research output: Contribution to journalReview articlepeer-review

27 Scopus citations


In this article, we focus on the theoretical properties of the foldover design and the resulting combined design obtained by augmenting an initial design by its foldover. We prove that there are 2p distinct ways to fold over a 2k-p design. Optimal foldover plans are also discussed. We investigate the impact of the inclusion of a blocking variable to the design. We show that the minimum aberration foldover design with the presence of the blocking effect is the same as the one without blocking.

Original languageEnglish (US)
Pages (from-to)403-408
Number of pages6
JournalStatistica Sinica
Issue number2
StatePublished - Apr 1 2003


  • Minimum aberration
  • Optimal foldover
  • Resolution
  • Word length pattern


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