metaConvert: an automatic suite for estimation of 11 different effect size measures and flexible conversion across them

Abstract

A fundamental pillar of science is the estimation of the effect size of associations. However, this task is sometimes difficult and error-prone. To facilitate this process, the R package metaConvert automatically calculates and flexibly converts multiple effect size measures. It applies more than 120 formulas to convert any relevant input data into Cohen's d, Hedges' g, mean difference, odds ratio, risk ratio, incidence rate ratio, correlation coefficient, Fisher's r-to-z transformed correlation coefficient, variability ratio, coefficient of variation ratio, or number needed to treat. Researchers unfamiliar with R can use this software through a browser-based graphical interface (https://metaconvert.org/). We hope this suite will help researchers in the life sciences and other disciplines estimate and convert effect sizes more easily and accurately.

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ORCID for Samuele Cortese: orcid.org/0000-0001-5877-8075

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