Problem 9

Question 1

factorial design

Answer 1

• several independent variables

- 2x2x3x = 3 independent variables with 2,2,3, levels respectively

Question 2

effets types

1. main effect
2. interaction efect

Answer 2

1. = effect of one of the independent variables on the dependent
2. effect of one independent variable changes depending on the level of another independent variable (may still have simple effects)