Interaction in an experimental design can be tested in:
A) a completely randomized model
B) a randomized block model
C) a two-way factor model
D) all ANOVA models
E) none of these

Question

Quizplus · Accepted Answer

Interaction can only be tested in a two-way factor model, where two factors are being simultaneously manipulated. In a completely randomized model, there is only one factor being tested, and in a randomized block model, the blocking variable is not a factor being manipulated. Therefore, the best choice is C - a two-way factor model.

Interaction in an Experimental Design Can Be Tested In