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Hi, I’d like to run higher-level FEAT analysis on 4 subject groups. Is the model below correct for investigating differences between groups and group averages? Also, what would be the advantage of running F-tests also? Many thanks, Eva Number of EVs = 4 Group EV1 EV2 EV3 EV4 1 1 0 0 0 1 1 0 0 0 2 0 1 0 0 2 0 1 0 0 3 0 0 1 0 3 0 0 1 0 4 0 0 0 1 4 0 0 0 1 Contrasts = 16 F-test = 0 Title EV1 EV2 EV3 EV4 C1 A>B 1 -1 0 0 C2 B>A -1 1 0 0 C3 A>C 1 0 -1 0 C4 C>A -1 0 1 0 C5 A>D 1 0 0 -1 C6 D>A -1 0 0 1 C7 B>C 0 1 -1 0 C8 C>B 0 -1 1 0 C9 B>D 0 1 0 -1 C10 D>B 0 -1 0 1 C11 C>D 0 0 1 -1 C12 D>C 0 0 -1 1 C13 A Mean 1 0 0 0 C14 B Mean 0 1 0 0 C15 C Mean 1 0 1 0 C16 D Mean 0 0 0 1