Values such as Cohen's d or r² (the percentage of variance accounted for)are used to measure
A)the validity of a hypothesis test.
B)the risk of committing a type I error.
C)the size of a treatment effect or the strength of a correlation.
D)the level of significance.

Question

Quizplus · Accepted Answer

Cohen's d and r² are both measures of effect size, which indicate the magnitude of a treatment effect or the strength of a correlation. They are not related to hypothesis test validity, type I error, or level of significance.

Values Such as Cohen's D or R² (The Percentage of Variance