Hello,
I've been asked about this question and I would like some guidance on how to proceed. Let say I have two models with a contrast on each (for example, the first model has age and the second one has weight). I would like to know how to proceed to find the interactions between these contrasts in SPM. And if I create another model and I include these two contrasts together, due to it high correlation I am afraid that the model will be incorrect. In other words I want to compare two contrasts in two different models or a way around this.
Any help?
Thanks in advance,
Rodrigo
Rodrigo Dennis Perea
Graduate Research Assistant
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Bioengineering Program
The University of Kansas
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