what is the parallel curve and interaction what is the implication of parallel and interaction why are graphs connected when there is no interaction what is the counterexample of interaction does the plots of hypothetical responses cross, but we do not have interaction? what is the counterexample for interaction and parallel curves? when does interaction occur what is an interaction curve do you get interaction when graphs are not parallel or parallel when the plots of hypothetical responses are not parallel and cross, there is interaction can plots cross and we have no interaction which is an example of interaction why are parallel curves used in the experiment how is interaction related to parallel curves what is the relationship between a parallel curve and interaction if the plots of hypothetical responses are not parallel but crossed, then there is interaction. what is the counterexample for an interaction curve why would we have a parallel curve that intersects a plot, but has no interaction with the plot? is an interaction an interaction if the plots of hypothesized responses are not parallel, and crossed, then there is interaction