When comparing 2 independent groups use a two-sample t-test which is very straight forward
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On Feb 25, 2011, at 12:44 AM, Pilar Archila-Suerte wrote:
Mine is actually not a repeated measures design. I'm running a full factorial and I just want to compare activity in one group vs. another. Do the con files need to be in the same order in each cell in this case?
On Thu, Feb 24, 2011 at 5:38 PM, MCLAREN, Donald <[log in to unmask]<mailto:[log in to unmask]>> wrote:
You should use the flexible factorial for repeated measure designs
with factors for subject and condition in your design.
Best Regards, Donald McLaren
D.G. McLaren, Ph.D.
Postdoctoral Research Fellow, GRECC, Bedford VA
Research Fellow, Department of Neurology, Massachusetts General
Hospital and Harvard Medical School
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On Thu, Feb 24, 2011 at 6:28 PM, Pilar Archila-Suerte
<[log in to unmask]<mailto:[log in to unmask]>> wrote:
> Dear SPM list,
> In setting ANOVAs in SPM, do the subject files need to be in the same order
> under each cell?
> I just ran two trial trial batches, one with the same order of subjects and
> one with a different order. The areas of activity are very similar but the
> order in which the areas show up as more or less intensive did vary.
> Any insight as to how SPM does this? should I stick to the same order of
> subjects for clarity?
> Pilar A .