What is the total number of measurements taken for a 3 x 2 factorial experiment, if both independent variables are within factors and there are 20 subjects?
A) 6
B) 60
C) 120
D) 240

Question

Quizplus · Accepted Answer

For a 3 x 2 factorial experiment, there are 3 levels of one independent variable and 2 levels of the other independent variable. Therefore, the total number of measurements is the product of the number of levels of each independent variable, which is 3 x 2 = 6. Since there are 20 subjects, the total number of measurements taken is 6 x 20 = 120. Thus, the correct answer is C (120).

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