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## ANOVA

Analysis of variance
Analysis of variance (ANOVA) is a collection of statistical models used to analyze the differences between group means and their associated procedures (such as "variation" among and between groups), developed by R.A. Fisher. In the ANOVA setting, the observed variance in a particular variable is partitioned into components attributable to different sources of variation. In its simplest form, ANOVA provides a statistical test of whether or not the means of several groups are equal, and therefore generalizes the t-test to more than two groups. As doing multiple two-sample t-tests would result in an increased chance of committing a statistical type I error, ANOVAs are useful in comparing (testing) three or more means (groups or variables) for statistical significance.

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ANOVA

Noun
1. a statistical method for making simultaneous comparisons between two or more means; a statistical method that yields values that can be tested to determine whether a significant relation exists between variables
(synonym) analysis of variance
(hypernym) multivariate analysis
(classification) statistics

Analysis of Variance (ANOVA)
a  method of analysis for determining the level of statistical significance of differences among the means of two or more

Research Analysis of Variance (ANOVA)
a research statistical technique for examining the differences among means for two or more populations.