To compute partial eta-squared,it is necessary to
A)partial out between-persons variability before computing proportion of variance
B)partial out within-persons variability before computing proportion of variance
C)partial out between-groups variability before computing proportion of variance
D)partial out within-groups variability before computing proportion of variance

Question

Quizplus · Accepted Answer

Partial eta-squared is a measure of effect size that represents the proportion of variance in the dependent variable that is accounted for by the independent variable, after controlling for the effects of other variables. To compute partial eta-squared, it is necessary to partial out the effects of the other variables, which means to remove their variance from the total variance in the dependent variable. This is done by first computing the between-persons variability, which is the variance in the dependent variable that is due to differences between the groups of participants. Then, the within-persons variability is computed, which is the variance in the dependent variable that is due to differences within the groups of participants. The partial eta-squared is then computed by dividing the between-persons variability by the total variability.

To Compute Partial Eta-Squared,it Is Necessary to