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Hi Navot, This looks generally fine, although the labels don't seem to match what the contrasts represent (e.g., for PewP-PewH and NewP-NewH, you'd want to reverse the signs, possibly the same for others). The group-level design matrix can be a 1-sample t-test for each of these 13 contrasts. For the F-test, only if you want a single test encompassing various of these, that is also two-tailed. I'd say it isn't necessary. All the best, Anderson On 23 February 2017 at 06:57, Navot Naot <[log in to unmask]> wrote: > Hi all, > I apologies in advance this is a long one…. > I have a 2X2X2 repeated measures ANOVA design, which I am trying to create > the proper matrices for, both in 1st level and in group level, I would be > very grateful for any help I can get on this. > The conditions are Scenario (Pain vs Neutral), regulation strategy > (Reappraisal vs Empathic Watch) and facial expression (Happy vs Painful). > I’m not interested at all in the all the possible contrasts. > What I have done so far was to run the first level with the following > matrix > EV1 EV2 EV3 EV4 > EV5 EV6 EV7 EV8 > PrH 1 0 0 0 0 > 0 0 0 > PrP 0 1 0 0 0 > 0 0 0 > PewP 0 0 1 0 0 0 > 0 0 > PewH 0 0 0 1 0 0 > 0 0 > NrH 0 0 0 0 1 > 0 0 0 > NrP 0 0 0 0 0 > 1 0 0 > NewH 0 0 0 0 0 0 > 1 0 > NewP 0 0 0 0 0 0 > 0 1 > PewP-PewH 0 0 -1 1 0 0 > 0 0 > PrP-PrH -1 1 0 0 0 0 > 0 0 > (PewP-)-(PrP-PrH) 1 -1 -1 1 0 0 > 0 0 > NewP-NewH 0 0 0 0 0 0 > -1 1 > (PewP-)-(NewP-NewH) 0 0 -1 1 0 0 1 > -1 > > I’m not sure how to set up the group level matrix, and the contrasts > (especially the use of different weights that I saw often in Anderson’s > replays). And finally should I use F tests (I’m not sure how this function > of FSL is used)? > Thank you, > > Navot >