Values such as Cohen's d or r ² (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 r ² are both measures of effect size, which are used to represent the magnitude of a treatment effect or the strength of a correlation. They do not directly measure the validity of a hypothesis test, the risk of committing a Type I error, or the level of significance.

Values Such as Cohen's D or R 2

Values Such as Cohen's D or R ²