Error term in contrasts
How does JASP select the error term it uses to calculate contrasts (planned or post hoc)?
Suppose, for example, you have a 2x2 fully repeated measures ANOVA. Many softwares (e.g., SPSS, Statistica) use the MSE term from the interaction in the ANOVA (in the example attached, that would be .174). Accordingly, all contrasts that form part of the interaction are tested using the same error term. This, however, is not the case in JASP, as the SE that is reported varies for different contrasts.
How does JASP calculate the error term?