Interaction contrasts
Posted: Tue Aug 01, 2023 7:14 am
Hello everyone!
I'm fairly new to Jamovi and am using it for teaching purposes (much easier for students to use than R!).
I'm working on a course around ANOVAs and I'm quite surprised that there's no way to calculate planned interaction contrasts.
For example, I used to calculate orthogonal contrasts for each factor in an R tool (https://github.com/NicolasStefaniak/easieR):
sex [1 -1]
alcohol [1 1 -2, 1 -1 0]
and this gives me statistical values for 1st and 2nd order contrasts.
Is there a way of calculating them directly in Jamovi's planned contrasts?
I'm fairly new to Jamovi and am using it for teaching purposes (much easier for students to use than R!).
I'm working on a course around ANOVAs and I'm quite surprised that there's no way to calculate planned interaction contrasts.
For example, I used to calculate orthogonal contrasts for each factor in an R tool (https://github.com/NicolasStefaniak/easieR):
sex [1 -1]
alcohol [1 1 -2, 1 -1 0]
and this gives me statistical values for 1st and 2nd order contrasts.
Is there a way of calculating them directly in Jamovi's planned contrasts?