A researcher conducts two studies using the one-way within-subjects ANOVA.The sum of squares total is smaller in Study 1 than in Study 2;the sum of squares between-persons and the sum of squares between-groups are the same in both studies.Using partial eta-squared,in which study will the effect size be larger?
A)Study 1
B)Study 2
C)There is not enough information to answer this question.

Question

Quizplus · Accepted Answer

Since both studies have the same sum of squares between-persons and between-groups, the only difference in effect size would come from the sum of squares within-subjects. Since Study 1 has a smaller sum of squares within-subjects, the effect size, as measured by partial eta-squared, will be larger in Study 1.

A Researcher Conducts Two Studies Using the One-Way Within-Subjects ANOVA