Hi,
This depends on what's in your model. If you have a simple unpaired t-
test with one EV for each group then definitely do not demean the
model or the data....does that cover your scenario?
Cheers.
On 3 Mar 2008, at 15:05, Suzanna Laycock wrote:
> HI,
>
> Sorry for this simple question. I've been reading today's threads
> about randomise and I was wondering if you have two or more groups,
> do you demean each group separately or calculate the average for all
> the groups?
>
> Thanks
> Suzanna
>
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Stephen M. Smith, Professor of Biomedical Engineering
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