Hi Gang,

This contrast seems to test any 'neighboring' contrast has a significant difference. If I want to test between any conditions, should I define Combination(9,2)=36 pairs that include all possible 'two-condition' pairs?

Or are you saying these 8 neighboring pair is equivalent to the 36 pairs?

Plus, I'm actually not totally sure if the 36 pairs contrast, which calculates 'significance between any two conditions' is equivalent to ANOVA, which tests the significance across conditions by using each condition's difference to the group mean to divide some variance parameter.

Hope you could elaborate on this. Thanks!