Access & Analyze the Metapsy Databases Directly From Your R Environment.

The open-source metapsyData package allows you to directly access all databases in R.

With metapsyTools, you can prepare and analyze meta-analytic databases using state-of-the-art methods.

metapsyData · metapsyTools


data <- metapsyData::getData(
print(data, 3)
#>              study   .g .g_se year
#> 1    Aagaard, 2017 0.00  0.23 2017 
#> 2       Abas, 2018 0.71  0.38 2018    
#> 3 Ahmadpanah, 2016 1.57  0.41 2016
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The metapsyData package can be installed from GitHub (for example using the remotes package).

The package allows to access the Metapsy meta-analytic psychotherapy databases directly in your R environment. Once installed, simply use the getData() function to save specific databases and database versions locally.

Once new databases or database updates are released, they automatically become available in metapsyData.

Open Documentation ↗



depressionPsyCtr %>%
    calculateEffectSizes() %>%
    runMetaAnalysis() %>%

#> Model results -------------------------
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The metapsyTools package can be installed from GitHub. For Metapsy databases (and datasets in the same format), the package provides integrated tools for the entire meta-analysis workflow, for example:

  • Automatized effect size calculation
  • Advanced database filtering
  • Effect size pooling using standard and multilevel meta-analysis, robust variance estimation
  • Correction for publication bias and small-study effects
  • Meta-regression and subgroup analyses
  • Automatized table generation for your meta-analysis report.

Open Documentation ↗

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