The MSA term in a one-factor between-subjects analysis of variance represents variation due to the.
A)effect of the independent variable plus error variation
B)error variation from one treatment to another
C)individual differences among participants
D)interaction of subjects with the independent variable

Question

Quizplus · Accepted Answer

MSA (Mean Square for the Treatment or Main Effect) represents the variation due to the effect of the independent variable plus the error variation, which is the variability in the dependent variable that cannot be explained by the independent variable. MSA is calculated by dividing the sum of squares for the treatment by the degrees of freedom for the treatment.

The MSA Term in a One-Factor Between-Subjects Analysis of Variance