Hi Christine, One more change: the cells in the last 4 columns and last 16 rows should all contain -1, otherwise contrasts won't produce the equivalent to a comparison between means of all 5 conditions, as I guess is what you'd like to do. All the best, Anderson On 11 October 2013 14:30, Anderson M. Winkler <[log in to unmask]>wrote: > Hi Christine, > > Design and contrasts look fine to me. However, the .grp file you sent > contains all 1s. Use instead one index per subject, so that the > permutations happen within subject only and across the 5 conditions. > > All the best, > > Anderson > > > > On 10 October 2013 14:56, Christine Wyss <[log in to unmask]> wrote: > >> Dear FSL experts, >> I would like to compare 5 conditions within 1 group (n=16). I designed a >> 1x5 ANOVA model as in the attachment and modified the .grp file regarding >> the structure of the data. The contrasts are A-E, B-E, C-E, D-E. The >> randomise function would look like: >> >> randomise -i merged_files.nii -o ANOVA_results -d 16x5.mat -t 16x5.con -f >> 16x5.fts -e 16x5_neu.grp -T -n 14400 -v 5 >> >> I would be very grateful if any of you could tell me if the design and >> contrasts are right. >> >> Best, >> Christine >> >> >