There is not a way to do this. Instead, try a paired analysis
https://surfer.nmr.mgh.harvard.edu/fswiki/PairedAnalysis

On 3/28/19 8:08 PM, brain health wrote:

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What is the best way to run a whole- brain Group (intervention group, control group) x Time (Pre, post) interaction via QDEC? (https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/QdecGroupAnalysis_freeview)

Thanks!


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