A researcher conducts two studies using the two-way between-subjects ANOVA.The sum of squares total is smaller in Study 1 than in Study 2; the sum of squares for Factor A is the same in both studies.In which study will the effect size be larger for Factor A using $\omega$²? A) Study 1 B) Study 2 C) there is not enough information to answer this question

Question

Quizplus · Accepted Answer

The effect size for Factor A (ω²) is calculated relative to the total variance in the data. If the sum of squares total is smaller in Study 1 while the sum of squares for Factor A remains the same in both studies, the proportion of variance accounted for by Factor A is larger in Study 1, leading to a larger effect size for Factor A in Study 1.

A Researcher Conducts Two Studies Using the Two-Way Between-Subjects ANOVA ω\omegaω

A Researcher Conducts Two Studies Using the Two-Way Between-Subjects ANOVA $\omega$