There are two places where it might influence it:
1. Computation of the FWHM used for corrections for multiple comparisons
depends on the average total surface area of the group. These are
probably pretty similar across groups.
2. The size of a cluster is computed (roughly) based on the average area
of that cluster across the subjects in the group. This probably is only
a factor on small clusters or clusters with a "funny" shape (ie, a large
perimeter to area ratio, eg, long and thin).
doug
Kelly Silva wrote:
Hello,
I need to know if the average subject can influenciate the final
statistics.
Can I have an average subject from two groups an use it to comparate
another diferent group?
Thanks, Kelly
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