I calculated a mixed Anova with a within factor (3 levels) and a between factor (2 levels). The between-within interaction is significant. Now I want to look at the Simple Main Effects (for both factors). What commands are there for the simple effects in R? And how do I do a simple effects analysis in Jamovi? I'd like to compare both R and Jamovi Analyses. Thank you very much.
So far I only have a R - command for the mixed anova ( ezAnova method).