How many conditions and possible interactions are there in a study with a 2 × 2 × 2 factorial design?
A)8 conditions and 4 possible interactions
B)4 conditions and 8 possible interactions
C)3 conditions and 2 possible interactions
D)2 conditions and 3 possible interactions

Question

Quizplus · Accepted Answer

In a 2 × 2 × 2 factorial design, there are three factors each at two levels, making 2*2*2 = 8 conditions. There are three possible two-way interactions (between each pair of factors) and one three-way interaction, totaling 4 possible interactions.

How Many Conditions and Possible Interactions Are There in a Study