Hi All,
I'm learning how to use SPM and I'm not sure how SPM handles contrasts. If I want to contrast one condition (A) against other three (B, C and D), I cant think of two ways to do that:
First way: 3 -1 -1 -1
Second way: 1 -0.33 -0.33 -0.33
Are these two ways equivalent, or is one better than the other?
Thanks!
Caterina
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