which two variables can interact to show the main effect of the interaction? how to interpret interaction plot how do you interpret interaction plots with variables when does main effect of a$ change which two variables will have main interaction in an interaction plot? which variable has the main effect on the interaction what is the interaction between the dependent and independent variables how does the main effect in an interaction plot differ from the main effect in a independent variable? what is main effect in interaction plot what are the main effects of interaction plots how can you interpret an interaction plot how can you interpret the main effect of an interaction plot? how does a interaction plot work which is the main effect of an interaction plot? how does a interaction plot work how is the main effect on the interaction plot explained which interaction plot has an interaction with $a$ how to interpret an interaction plot how to interpret interaction plot how to interpret interaction