Hi Amit
I've reviewed your design and I'm not quite sure where the problem is. Is your subject factor, factor number 1? If not it should be. I set up almost exactly an equivalent model to yours with subject as factor 1 and it works fine (works mean the contrasts behave as expected).
That being said I would discourage you from having a design with all the effects. It is much easier to have a design with just the subject factor and the 3 way interaction (of group, region and side in your case) and then to form all the relevant contrasts from that design.
Darren
> -----Original Message-----
> From: Amit Etkin [mailto:[log in to unmask]]
> Sent: Friday, July 11, 2008 12:50 AM
> To: [log in to unmask]; Darren G
> Cc: Amit Etkin
> Subject: Re: setting up an ANOVA
>
> Darren et al.,
>
> I apologize for being slow on this, but am still having
> problems trying to specify my contrasts. I've reattached the
> design matrix and list of column titles. I'm starting by just
> trying to get the effect of group (as a T-test and F-test).
> Based on my reading of Jan Glascher and Darren's contrast
> specification PDF, I have tried to input the following
> specification into the contrast manager (under either T or F
> contrast), but each time am told that it's an invalid
> contrast...I can't figure out why.
>
> Does the contrast vector below make sense? Is there some way
> I'm entering it that's wrong? Should it be entered
> differently for a T vs F contrast?
>
> 1 -1 0 0 0 0 ones(1,14)/14 -ones(1,31)/31 ones(1,2)/2 -ones(1,2)/2
> ones(1,2)/2) -ones(1,2)/2 0 0 0 0
>
> The subject breakdown was 14 in group 1 and 31 in group 2.
>
> thanks!
>
> Amit
>
>
> > 1 'Group_{1}'
> > 2 'Group_{2}'
> > 3 'Region_{1}'
> > 4 'Region_{2}'
> > 5 'Side_{1}'
> > 6 'Side_{2}'
> > 7 'Subject_{1}'
> > 8 'Subject_{2}'
> > 9 'Subject_{3}'
> > 10 'Subject_{4}'
> > 11 'Subject_{5}'
> > 12 'Subject_{6}'
> > 13 'Subject_{7}'
> > 14 'Subject_{8}'
> > 15 'Subject_{9}'
> > 16 'Subject_{10}'
> > 17 'Subject_{11}'
> > 18 'Subject_{12}'
> > 19 'Subject_{13}'
> > 20 'Subject_{14}'
> > 21 'Subject_{15}'
> > 22 'Subject_{16}'
> > 23 'Subject_{17}'
> > 24 'Subject_{18}'
> > 25 'Subject_{19}'
> > 26 'Subject_{20}'
> > 27 'Subject_{21}'
> > 28 'Subject_{22}'
> > 29 'Subject_{23}'
> > 30 'Subject_{24}'
> > 31 'Subject_{25}'
> > 32 'Subject_{26}'
> > 33 'Subject_{27}'
> > 34 'Subject_{28}'
> > 35 'Subject_{29}'
> > 36 'Subject_{30}'
> > 37 'Subject_{31}'
> > 38 'Subject_{32}'
> > 39 'Subject_{33}'
> > 40 'Subject_{34}'
> > 41 'Subject_{35}'
> > 42 'Subject_{36}'
> > 43 'Subject_{37}'
> > 44 'Subject_{38}'
> > 45 'Subject_{39}'
> > 46 'Subject_{40}'
> > 47 'Subject_{41}'
> > 48 'Subject_{42}'
> > 49 'Subject_{43}'
> > 50 'Subject_{44}'
> > 51 'Subject_{45}'
> > 52 'Group*Region_{1,1}'
> > 53 'Group*Region_{1,2}'
> > 54 'Group*Region_{2,1}'
> > 55 'Group*Region_{2,2}'
> > 56 'Group*Side_{1,1}'
> > 57 'Group*Side_{1,2}'
> > 58 'Group*Side_{2,1}'
> > 59 'Group*Side_{2,2}'
> > 60 'Region*Side_{1,1}'
> > 61 'Region*Side_{1,2}'
> > 62 'Region*Side_{2,1}'
> > 63 'Region*Side_{2,2}'
>
>
