Hi again,
I understand that the following: "'between-condition' contrast of [1 -1 0; 0 1 -1] and select all three groups and enter a 'between-subjects' contrast of [1 -1 0; 0 1 -1]" will detect any interaction group*condtion, a 3x3 ANOVA. I would like to do the same with 2 groups and 2 conditions (temporal points): should I enter the following contrasts: [1 -1; -1 1] or [1 0; 0 1] or any other?
Thank you again!

E