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Intro to Statistics with R: Student's T-test

Exercise

Understanding Cohen's d

Which of the following statements is not true?

Instructions

50 XP

Possible answers

Cohen's d is unbiased by sample size.

Cohen's d measures significance based on a predetermined significance level.

Cohen's d provides a standardized difference between two means.

Cohen's d is calculated by subtracting one group mean from the other, then dividing by the pooled standard deviation.