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What would be the effect size for the effect of the new learning tool on San...

What would be the effect size for the effect of the new learning tool on San Diego Community College student learning outcomes given the difference between the population average of 80 and the sample of students who showed a mean test score of 83 and that the population standard deviation was 6? Use Cohen’s d to compute the effect size and identify the correct magnitude of the effect.

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Cohen’s d = .5, medium effect size

Cohen’s d = 3, large effect size

Cohen’s d = 3, medium effect size

Cohen’s d = .5, large effect size

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