what is the impact size of interaction for multiple regression how should interaction effect sizes be evaluated interaction effects of model in multiple regression how to evaluate interaction effects in hlm effects of interaction in multiple regression what is the effect size of interaction in multiple regression effects of interactions in multiple regression analysis effects of multilevel multiple regression effects of interaction effect size of interaction what is the interaction effect does interaction affect the explained variance in multiple regression which interaction effect size is appropriate for multilevel can interaction effects be used for regression analysis why interaction effects in multiple regression what is the effect size of a interaction in multilevel regression why interaction models are not good for multilevel model which interaction has the least effect why are interaction effects small how to evaluate interactivity