Factorial experimental designs must have which of the following?
A) One control variable
B) More than two dependent variables
C) An independent variable with at least three levels
D) Two or more independent variables

Question

Quizplus · Accepted Answer

Factorial experimental designs require two or more independent variables. Having just one control variable (A) or more than two dependent variables (B) is not a requirement for a factorial design. While it is common to have an independent variable with at least three levels (C), it is not an absolute requirement. Therefore, the best choice is D, which is the only option that is a requirement for factorial designs.

Factorial Experimental Designs Must Have Which of the Following