This would be the difference between groups, averaged over your
conditions, if I read this correctly.
On Thu, 9 Nov 2006, boris suchan wrote:
> Hi all,
>
> I posted this message before but did not get any reply.
>
> So here it is again with a nice liitle graphic attached.
>
> If I have a full factorial design and model the interaction, do I have to
> model the main effects separately or can I define the main effects by
> putting some conditions together? In the attached example there are 2 groups
> and three conditions. To get the main effect group, I would define something
> like
>
>
>
> 1 1 1 -1 -1 -1
>
>
>
>
>
> Is this correct?
>
>
>
>
>
> Many thanks
>
>
>
> boris
>
>
>
> Priv.-Doz. Dr. Boris Suchan
>
> Institute of Cognitive Neuroscience
>
> Ruhr University Bochum
>
> Universitätsstr. 150
>
> 44780 Bochum
>
> GAFO 05/613
>
> Tel.: + 49 234 3227575
>
> Fax: + 49 234 3214622
>
> mailto: <mailto:[log in to unmask]> [log in to unmask]
>
> <http://www.ruhr-uni-bochum.de/neuropsy/mitarbeiter/boris_suchan.html>
> http://www.ruhr-uni-bochum.de/neuropsy/mitarbeiter/boris_suchan.html
>
>
--
Volkmar Glauche
-
Department of Neurology [log in to unmask]
Universitaetsklinikum Freiburg Phone 49(0)761-270-5331
Breisacher Str. 64 Fax 49(0)761-270-5416
79106 Freiburg http://fbi.uniklinik-freiburg.de/
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