Which of the Following Statements About Factorial Designs Is TRUE

Multiple Choice

Which of the following statements about factorial designs is TRUE?

A) A hypothesis that one variable moderates the effect of another can be tested only with a factorial design.
B) A factorial design can include either manipulated independent variables or correlational dependent variables, but not both in the same study.
C) In a counterbalanced within-subjects design an interaction between order of participation in experimental conditions and the independent variable means that order effects are not a problem.
D) It is not possible to have a factorial design with more than three conditions per independent variable.