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Hi - you don't need to do anything to account for this - the stats will be fine.
Cheers.


On 23 Feb 2010, at 16:58, Alex Baria wrote:

Hi,

I am interested in doing a repeated-measures analysis for finding the
average activation across a 2-session scan.  However, 1 scan is half the
length of the the other one (120 volumes vs 240).  What is the best way to
to account for this difference in calculating the average activation?

Thanks,
Alex



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Stephen M. Smith, Professor of Biomedical Engineering
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