I have 6 Treatment groups (A-F, with A as control) and measure parameter A at four time points 1-4. I am particulary interested in the changes over time depending on the treatment - time*treatment.
To do this, I used "Contrasts" and set the "time" contrast to polynomial, because I want to know if the changes over time between the treatment groups are different.
They are - I get a significant result. However, I want to know between which groups the changes are significant (so to say a kind of Post-hoc test). Is there any possibility to do this besides "calculating all group combinations seperate" ?
If you have any questions regarding the study design, feel free to ask