Statistical Software Packages

RcmdrPlugin.MA: Graphical User Interface for Conducting Meta-Analyses 

This is an R-Commander plug-in for meta-analysis. This package enables the user to conduct a meta-analysis in a menu-driven, graphical user interface environment (e.g., SPSS). It uses recommended procedures as described in The Handbook of Research Synthesis and Meta-Analysis (Cooper, Hedges, & Valentine, 2009).

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compute.es: Compute Effect Sizes

This package contains several functions for calculating the most widely used effect sizes (ES), along with their variances, confidence intervals and p-values. The output includes ES's of d (mean difference), g (unbiased estimate of d), r (correlation coefficient), z' (Fisher's z), and OR (odds ratio and log odds ratio). In addition, NNT (number needed to treat), U3, CLES (Common Language Effect Size) and Cliff's Delta are computed. This package uses recommended formulas as described in The Handbook of Research Synthesis and Meta-Analysis (Cooper, Hedges, & Valentine, 2009).

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MAd: Meta-Analysis with Mean Differences

This is an integrated meta-analysis package for conducting a research synthesis with mean differences data. One of the unique features of this package is in its integration of user-friendly functions to facilitate statistical analyses at each stage in a meta-analysis with mean differences. 

Get it here ​
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MAc: Meta-Analysis with Correlations

This is an integrated meta-analysis package for conducting a correlational research synthesis. One of the unique features of this package is in its integration of user-friendly functions to facilitate statistical analyses at each stage in a meta-analysis with correlations.

Get it here ​

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