Answer
Interaction effect tells us how much independent effect variation affects the dependent variable. It tells us that the change in one variable leads to a change in the dependent variable by a specified number of units.
If the main effect is computed in the presence of interaction effect, it will not give proper results as the interaction effect will be included in the main effect.The main effect tells us about the independent variable's effect on the dependent variable when the average is calculated over all other independent variables.
Work Step by Step
Given above.
