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Dr. Fowler calculates a Cohen's d of 1.21. How should she describe this effect size? Impossible....

Dr. Fowler calculates a Cohen's d of 1.21. How should she describe this effect size?

Impossible. The largest value for Cohen's d is 1.

Large

Small

Medium

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Answer #1

Cohen's d is greater than 1 so the effect size will be large.

Option B is correct.   

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