ANOVA
1. In two-way ANOVA, we study not only the effect of two independent variables on the dependent variable, but also the ___ between these variables.
2. We could conduct multiple t-tests between pair of hypotheses but there are several advantages when we conduct a two-way ANOVA. These include:
(a) Efficiency
(b) Control over additional variables
(c) The study of interaction between variables
(d) All of the above