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    What do you use for SStotal when calculating effect size η2 on SPSS for mixed-design ANOVA?

    If you want to derive η2 values from a 2-or-more way ANOVA with at least one within-subjects factor, what items on the SPSS output do you add up to arrive at the total sum of squares (SStotal) for the following equation? η2 = SSeffect/SStotal With outputs for 2-or-more ANOVA with only...