Outliers in ANOVA and multcompare

Hi,

Does ANOVA1 and multcompare functions include the outliers in the analysis?

If not, how can I force to do that?

Thanks!

Answer 1

[Jeff Miller]

Yes, outliers are included. (Scores are considered outliers only for the purposes of the boxplots.)

The way you can tell is that the total df in the ANOVA table is 1 less than the total number of scores. If outliers were dropped, this total df value would drop correspondingly.