Significance tests
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! comparing >2 groups | ! comparing >2 groups | ||
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| - | | parametric [http://en.wikipedia.org/wiki/Parametric_statistics] (equal variance) | + | | parametric [http://en.wikipedia.org/wiki/Parametric_statistics] (equal variance [http://en.wikipedia.org/wiki/Variance]) |
| Student's t-test [http://en.wikipedia.org/wiki/Student%27s_t-test] | | Student's t-test [http://en.wikipedia.org/wiki/Student%27s_t-test] | ||
| ANOVA [http://en.wikipedia.org/wiki/Analysis_of_variance] | | ANOVA [http://en.wikipedia.org/wiki/Analysis_of_variance] | ||
|- | |- | ||
| - | | parametric (different variances | + | | parametric (different variances) |
| Welch t-test [http://en.wikipedia.org/wiki/Welch%27s_t_test] | | Welch t-test [http://en.wikipedia.org/wiki/Welch%27s_t_test] | ||
| Welch ANOVA | | Welch ANOVA | ||
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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 == | ||
| + | |||
| + | * [[Guide to Excel for statistics#Student t test]] | ||
| + | |||
[[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] |
