For a 2 4 factorial design, there is the possibility of _____ main effect(s) and _____ interaction effect(s).
a. 2; 4
b. 2; 1
c. 4; 8
d. 8; 8
Question 2
For a two-way factorial design, there is the possibility of _____ main effect(s) and _____ interaction effect(s).
a. 2; 2
b. 1; 2
c. 2; 1
d. 2; 4