When we compute an effect size measure such as
for a factorial ANOVA we have to decide
A) what effects should be included in estimating the denominator.
B) what are our variables of theoretical interest.
C) whether we want an r -family measure or a d -family measure.
D) all of the above

Question

When we compute an effect size measure such as
 for a factorial ANOVA we have to decide
A) what effects should be included in estimating the denominator. 
B) what are our variables of theoretical interest. 
C) whether we want an r -family measure or a d -family measure. 
D) all of the above

Quizplus · Accepted Answer

All of the above choices are important considerations when computing an effect size measure for a factorial ANOVA. A) We need to decide which effects (main effects or interaction effects) should be included in estimating the denominator of the effect size measure. B) We also need to identify which variables are of theoretical interest to interpret the effect size measure. C) Finally, we need to decide whether we want an r-family measure (e.g., eta-squared or partial eta-squared) or a d-family measure (e.g., Cohen's d or Hedges' g) based on the research question and the type of data we have.

When We Compute an Effect Size Measure Such as