Suppose you have a 2x2 design in which one of the variables is a between-subjects factor and one of the variables is a within-subjects factor. Further suppose that there will be 30 subjects in the upper left-hand cell of the 2x2 array. How many subjects are needed to complete the study?
A)60
B)30
C)120
D)cannot be determined with the available information

Question

Quizplus · Accepted Answer

In a 2x2 design with one between-subjects factor and one within-subjects factor, each subject participates in all levels of the within-subjects factor. Therefore, if there are 30 subjects in one cell, there must be 30 subjects in each of the two between-subjects conditions, totaling 60 subjects.

Suppose You Have a 2x2 Design in Which One of the Variables