11. Analysis of Variance

  1. Michael J. Crawley

Published Online: 6 NOV 2012

DOI: 10.1002/9781118448908.ch11

The R Book, Second Edition

The R Book, Second Edition

How to Cite

Crawley, M. J. (2012) Analysis of Variance, in The R Book, Second Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9781118448908.ch11

Author Information

  1. Imperial College London at Silwood Park, UK

Publication History

  1. Published Online: 6 NOV 2012
  2. Published Print: 7 DEC 2012

ISBN Information

Print ISBN: 9780470973929

Online ISBN: 9781118448908



  • analysis of variance;
  • one-way ANOVA, and calculations;
  • plots, interpreting one-way ANOVA;
  • pseudoreplication, nested designs and split plots;
  • split-plot experiments/mixed-effects models;
  • pseudoreplication removal;
  • variance components analysis;
  • effect sizes in ANOVA, aov or lm;
  • multiple comparisons;
  • multivariate analysis of variance


This chapter contains sections titled:

  • One-way ANOVA

  • Factorial experiments

  • Pseudoreplication: Nested designs and split plots

  • Variance components analysis

  • Effect sizes in ANOVA: aov or lm?

  • Multiple comparisons

  • Multivariate analysis of variance