Scale for the interaction in an ANOVA model
I'm a bit confused about the rscaleFixed value that is applied to an interaction. The interaction is coded as the product of two main effects, with the latter coded as sqrt(2)/2 implying the former is coded as 1/2. Does that mean that, for a fixed rscaleFixed value entered into the BF package, there are different scales applied to the main effects and the interactions?
I know that this isn't the case when a whichModels is set to "bottom" because the BF package is coded to default to a ttest in this case (so the difference in coding doesn't matter). But what if whichModels is set to "top"?