Statnote 12: the split-plot analysis of variance

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In some experimental situations, the factors may not be equivalent to each other and replicates cannot be assigned at random to all treatment combinations. A common case, called a ‘split-plot design’, arises when one factor can be considered to be a major factor and the other a minor factor. Investigators need to be able to distinguish a split-plot design from a fully randomized design as it is a common mistake for researchers to analyse a split-plot design as if it were a fully randomised factorial experiment.

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Original languageEnglish
Number of pages2
Publication statusPublished - Mar 2008


  • split-plot design, randomized design

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