search for: unbalancedtwowayanova

...with running an unbalanced two-way ANOVA, is that things get tricky when calculating the sum of squares for two factors and the interaction term. *What I am stuck on:* So far what I have done is applied my data to this helpful tutorial: http://www.biw.kuleuven.be/vakken/statisticsbyr/ANOVAbyRr/UnbalancedTwoWayANOVA.htm I found that my interaction term was insignificant, so my model was reduced to a two-factor model. But then I got stuck on the part where I use a general linear test (GLT) to determine whether I should use a two- or one- factor model to get my correct sum of squares decomposition for my u...