# Significance tests

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| Kruskal-Wallis test [http://en.wikipedia.org/wiki/Kruskal-Wallis_test] | | Kruskal-Wallis test [http://en.wikipedia.org/wiki/Kruskal-Wallis_test] | ||

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== Links == | == Links == | ||

* [[Guide to Excel for statistics#Student t test]] | * [[Guide to Excel for statistics#Student t test]] | ||

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[[Category:statistics]] | [[Category:statistics]] | ||

[[Category:analysis]] | [[Category:analysis]] |

## Current revision

back to stats portal |

data type | comparing 2 groups | comparing >2 groups |
---|---|---|

parametric [1] (equal variance [2]) | Student's t-test [3] | ANOVA [4] |

parametric (different variances) | Welch t-test [5] | Welch ANOVA |

nonparametric [6] | rank sum test (Mann-Whitney) [7] | Kruskal-Wallis test [8] |