Based on the effect size table covered in class, d 0.18 is a
A. medium effect size
B. insignificant result
C. small effect size
D. large effect size

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Answer & Explanation




2022-09-07Added 14 answers

Cohen suggested that d=1.8 be considered small effect size.
A small effect size is one in which there is a real effect - something is really happening in the world - but which you can only see through careful analysis. This means that if the two group's means don't differ by 0.2 standard deviations or more, the difference is trivial, even if it is statistically significant.
So answer is option c, small effect size.

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