can you interpret main effect of variables what variable has an interaction effect when does an interaction between different variables occur what is the main effect of interaction how to interpret a main effect what is the main effect of a variable what is the main effect how do you interpret the main effect for an interaction what are the main effects when the interaction is significant interpreting the main effect how to interpret main effects for anova how does the interaction affect the main effect in a variable when is it important to interpret the main effect of a variable how do the main effects differ in a controlled trial? if bxc is not an interaction variable is there an interaction effect? what is the main effect of interaction is main effect a type of interaction what is interaction effect if there is interaction between variables what can one interpret what is the main effect of interaction