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Effect Size Calculator

Practical Meta-Analysis Effect Size Calculator
This is a web-based effect-size calculator. It is designed to facilitate the computation of effect-sizes for meta-analysis. Four effect-size types can be computed from various input data: the standardized mean difference, the correlation coefficient, the odds-ratio, and the risk-ratio.
This calculator is a companion to the 2001 book by Mark W. Lipsey and David B. Wilson, Practical Meta-analysis, published by Sage.
An older Excel based version of the calculator can be found at Additional tools for performing meta-analysis can also be found at that web address.

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