Standard Error from Sample Sizes and SMD

Approximates SMD standard error from sample sizes and SMD.

Standardized mean differences
Sample size group 1
Sample size group 2
Transformation method ("Hedges", "Cohen")
Within Study Result

Result

Function References

Cooper, H., Hedges, L. V., & Valentine, J. C. (Eds.). (2009). https://psycnet.apa.org/record/2009-05060-000 Link

How to Cite

Emprechtinger, R., Schwarzer, G., Tölch, U., Schreder, G., & Gartlehner, G. (2025). Assessing the effectiveness of metaHelper: A randomized controlled trial of a web application and R package to streamline statistical transformations in meta-analysis. Journal of Clinical Epidemiology, 179, 111640. https://doi.org/10.1016/j.jclinepi.2024.111640

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