cohens_d: Cohen's d Calculation
In ClinSigMeasures: Clinical Significance Measures
Description
Usage
Arguments
Value
Author(s)
References
Examples
Description
Calculates a Cohen's d effect size using the means and standard deviations of two independent groups
Usage
1
cohens_d(Group1_Mean, Group1_SD, Group2_Mean, Group2_SD)
Arguments
Group1_Mean
Mean for Group 1
Group1_SD
Standard Deviation for Group 1
Group2_Mean
Mean for Group 2
Group2_SD
Standard Deviation for Group 2
Value
A single value representing the Cohen's d effect size
Author(s)
Mike Malek-Ahmadi
References
1. Cohen, Jacob (1988). Statistical Power Analysis for the Behavioral Sciences. Routledge. ISBN 978-1-134-74270-7.
2. Malek-Ahmadi M, Perez SE, Chen K, Mufson EJ. Neuritic and diffuse plaque associations with memory in
non-cognitively impaired elderly. J Alzheimers Dis 2016;53(4):1641-1652.
Examples
1
2
3
4
5
#From Table 2 in Malek-Ahmadi et al (2016)
#comparing groups with (0.75+/-0.35) and without (0.49+/-0.29) neuritic plaques
#on a global cognitive score (z-score).
cohens_d(0.75, 0.35, 0.49, 0.29)
ClinSigMeasures documentation built on Feb. 25, 2021, 5:08 p.m.
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Description Usage Arguments Value Author(s) References Examples
Description
Calculates a Cohen's d effect size using the means and standard deviations of two independent groups
Usage
1 | cohens_d(Group1_Mean, Group1_SD, Group2_Mean, Group2_SD)
|
Arguments
Group1_Mean |
Mean for Group 1 |
Group1_SD |
Standard Deviation for Group 1 |
Group2_Mean |
Mean for Group 2 |
Group2_SD |
Standard Deviation for Group 2 |
Value
A single value representing the Cohen's d effect size
Author(s)
Mike Malek-Ahmadi
References
1. Cohen, Jacob (1988). Statistical Power Analysis for the Behavioral Sciences. Routledge. ISBN 978-1-134-74270-7.
2. Malek-Ahmadi M, Perez SE, Chen K, Mufson EJ. Neuritic and diffuse plaque associations with memory in non-cognitively impaired elderly. J Alzheimers Dis 2016;53(4):1641-1652.
Examples
1 2 3 4 5 | #From Table 2 in Malek-Ahmadi et al (2016)
#comparing groups with (0.75+/-0.35) and without (0.49+/-0.29) neuritic plaques
#on a global cognitive score (z-score).
cohens_d(0.75, 0.35, 0.49, 0.29)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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