Asked by Leidy Diana diaz tamayo on Jul 15, 2024
Verified
Calculate Cohen's d for t = 4.22 with N = 60 for each of the two groups.
A) .07
B) .39
C) .78
D) 1.11
Cohen's D
A measure of the size of an effect or difference between two group means, expressed in standard deviation units.
- Execute the computation and interpretation of Cohen's d statistic for assorted group magnitudes and cases.
Verified Answer
YZ
Yueqi ZhangJul 20, 2024
Final Answer :
C
Explanation :
Cohen's d is calculated using the formula d=tN/2d = \frac{t}{\sqrt{N/2}}d=N/2t . Plugging in the values given, d=4.2260/2=4.2230≈0.77d = \frac{4.22}{\sqrt{60/2}} = \frac{4.22}{\sqrt{30}} \approx 0.77d=60/24.22=304.22≈0.77 , which rounds to .78, making option C correct.
Learning Objectives
- Execute the computation and interpretation of Cohen's d statistic for assorted group magnitudes and cases.