what is interaction analysis when do interaction effects occur in psychology? how linear are interaction effects? what is the relationship between interaction and trait interaction effect interaction effects definition psychology when a trait is not linear is interaction a linear variable interaction effects what is relationship interaction effect interaction effect in psychology why interaction effect in statistics is always linear why interaction effects are non linear in psychology which of these authors suggests that the relationship between construct and trait is not linear? which relationship exists between construct and observed trait? which observation demonstrates the relationship between construct and trait how does interaction effects work in psychology what is the interaction effect interaction effects and trait what relationship is there between an interaction and a trait