ABSTRACT
The simplest two factor ANOVA to calculate is where both factors are independent measures. Here the between conditions variance has to be separated into that arising from Factor A, Factor B and the interaction A × B, as in all two factor ANOVAs. As there are individual differences in all sums of squares calculations we can use the within conditions variance as the error term for all three variance ratios. This makes the calculations relatively easy. We, therefore, complete the following ANOVA summary table.
