Interaction in an experimental design can be tested in
A) a two-factor model.
B) a completely randomised model.
C) a randomised block model.
D) all ANOVA models.

Question

Quizplus · Accepted Answer

Interaction in an experimental design can be tested in a two-factor model, as it allows for the examination of how the effect of one factor varies at different levels of another factor. This is not possible in a completely randomised or randomised block model, which only assess the effects of one factor at a time. While all ANOVA models can detect interactions, the two-factor model is the most appropriate for testing interaction hypotheses.

Interaction in an Experimental Design Can Be Tested in