[R] anova

[Ista Zahn]

This email list is about R, not introductory statistics. But the
answer to your question is: reject the 4 df hypothesis that the
population means of the 5 groups are all equal. Retain each single df
hypothesis about pairwise population mean differences.

-Ista

On Mon, Dec 28, 2009 at 6:02 AM, Iasonas Lamprianou
<lamprianou at yahoo.com> wrote:
> Dear friends,
>
> I have run an ANOVA using a linear variable as dependent and a nominal variable with five groups as independent (factor). The F test is statistically significant F(4, 431)=2.54, p=0.036.However, the multiple comparisons have shown no difference between any two groups (no matter whether I used sheffe, tukeys, lsd etc). What is the interpretation?
>
> Thanks
> Jason
>
>
>
>
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>



-- 
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org