The grand mean in a factorial ANOVA is NOT useful in calculating which of these?
A) total sum of squares
B) within groups sum of squares
C) sum of squares for factor 1
D) sum of squares for factor 2

Question

Quizplus · Accepted Answer

The grand mean is not used in calculating the within groups sum of squares, which is based on deviations of individual scores from their respective group means, not the grand mean.

The Grand Mean in a Factorial ANOVA Is NOT Useful