The three potential sources of systematic variation in a complex design experiment involving two independent variables include
A)one main effect,one interaction effect,and one error effect.
B)one main effect,a simple main effect,and an interaction effect.
C)two main effects and a comparison effect.
D)two main effects and an interaction effect.

Question

Quizplus · Accepted Answer

The best choice is D because a complex design experiment involving two independent variables will have two main effects (one for each independent variable) and an interaction effect between the two. The other options either do not account for all potential sources of variation or include extraneous sources that are not relevant to this type of experiment.

The Three Potential Sources of Systematic Variation in a Complex