In a 4 x 3 factorial design,for a completely independent groups design with 10 participants per group,how many participants will you need?
A) 120
B) 30
C) 70
D) 60

Question

Quizplus · Accepted Answer

In a 4 x 3 factorial design, there are 4 levels of one independent variable and 3 levels of another independent variable. To have completely independent groups, each cell in the design will have its own unique group of participants. Therefore, the total number of participants needed will be the product of the number of groups in each cell.

Number of groups in each cell = 10 (given in the question)

Total number of groups = 4 x 3 = 12

Total number of participants needed = 10 x 12 = 120

Therefore, the answer is A) 120.

In a 4 X 3 Factorial Design,for a Completely Independent