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

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

Quizplus · Accepted Answer

Cohen's d and r2 are both measures of effect size, meaning they quantify the magnitude of a treatment effect or the strength of a correlation, respectively. They are not used to measure the validity of a hypothesis test or the level of significance, nor do they provide information about the risk of committing a type I error.

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