Hi Zsuzsi, No need for -D for your design as long as you include the intercept, which you are already including (EV1). The results that you describe seem fine, just that there is a global effect in C2, and nothing in the opposite direction (C3). The C1 isn't necessary, and it's the one that is causing those warnings when you include the -D (the warnings should disappear if you remove the intercept and then add the -D, but that's not necessary; just carry on with the intercept in the model, without -D, and dropping C1). All the best, Anderson On 20 July 2014 16:15, Zsuzsika Sjoerds <[log in to unmask]> wrote: > Hi Anderson, > > Thanks for the tip! I got the 'everywhere significant' results with tfce, > so not the uncorrected t-maps. > > It remains unclear to me if I should add the -D option or not? Because > that is actually where the randomise calculation gets stuck on (see the > terminal output I pasted in my last message). I recently understood this > should always be added, or is that only when you do a group comparison, > e.g. 2-sample t-test (which will actually be my next step, so I need to > know this)? > > Best, > Zsuzsi >