ANOVA -short for “analysis of variance”- is a statistical technique for testing if 3(+) population means are all equal.

The two simplest ANOVA scenarios are

  • one-way ANOVA for comparing 3(+) groups on 1 variable: do all children from school A, B and C have equal mean IQ scores?
  • Repeated measures AONVA for comparing 3(+) variables in 1 group: is the mean rating for beer A, B and C equal for all people?

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