Hi R-people, To determine contrasts after MANOVA I've found a piece of R-code provided by Yves Rosseel (http://tolstoy.newcastle.edu.au/R/help/04/06/0134.html), which has been very helpful. Now I Would like to determine contrasts for a model which has a main effect and an interaction effect, and in which both effects were found to be statistically significant. I'm a bit puzzled with the contrast matrix to feed the routine, especially for the interactions. Could anybody help me out here? If more information is necessary on the underlying model, pleas let me know. Best regards, Tsjerk