Hi SPMers,
I created a contrast using two different analysis methods
a) getting the contrast in the 1st level and then analyze it in the 2nd level for all participants
b) creating the two conditions at the 1st level and then contrasting the two conditions at the second level [1 -1]
I found pretty different results and I’d like to understand why and what method is the best? Can anyone help me?
Thank you in advance
Best
Maite