Asked by Kendra Grady on May 01, 2024
Verified
Cohen's d is an estimate of ______.
A) the difference between the mean and the population in standard deviation units
B) the magnitude of the difference between the means of two groups measured in standard deviation units
C) the magnitude of the difference between the means of two groups measured in standard error units
D) the magnitude of the difference between the means of two groups measured in z-score units
Cohen's D
A measure of effect size indicating the standardized difference between two means.
Standard Deviation Units
Units measured in terms of the number of standard deviations away from the mean of the distribution.
- Compute and elucidate the significance of Cohen's d value across varying group dimensions and contexts.
- Differentiate among various statistical measures (r, Cohen's d, t) and their roles in scientific studies.
Verified Answer
TL
Thomas LourdeauMay 04, 2024
Final Answer :
B
Explanation :
Cohen's d is a measure of effect size that quantifies the magnitude of the difference between the means of two groups in standard deviation units. The larger the Cohen's d, the larger the effect size and the more meaningful the difference between the two groups. Choices A, C, and D are incorrect because they do not accurately describe what Cohen's d represents.
Learning Objectives
- Compute and elucidate the significance of Cohen's d value across varying group dimensions and contexts.
- Differentiate among various statistical measures (r, Cohen's d, t) and their roles in scientific studies.