Meta-Analytic Psychotherapy Research,
Open for Everyone.
Tools & Features of the Metapsy Project
A Unified Framework of Meta-Analytic Databases
Metapsy implements the concept of a “meta-analytic research domain” (MARD) for psychological interventions. We provide access to “living” databases that cover an entire research field, and are therefore broader than what can be covered by a single systematic review.
Our goal is to provide up-to-date data on the effects psychotherapy compared to various control groups and alternative treatments, and across all major mental disorders.
Documentation, Versioning & Indexing
All meta-analytic databases included in Metapsy are provided with rich metadata, in which the study search, extraction and coding steps are detailed. We also provide a detailed documentation for each database to increase transparency. All databases are versioned and archived on a public research data repository.
A Digital Object Identifier (DOI) is provided for all versions of each database, which can be used to unambiguously reference each database (and its specific version).
Meta-Analytic Synthesis
Upload a dataset that follows the Metapsy data standard and run a full meta-analysis or network meta-analysis online.
Metapsy databases can also be explored in the browser using the Treatment Effect Explorer, which analyses overall effects in real time and lets you inspect heterogeneity with subgroup tests and meta-regression.
R Packages
Metapsy includes two R packages to simplify the use of the provided
data for researchers. The metapsyData package can be used to download
all databases (and versions thereof) directly into an R environment. All data is
provided in a standardised format, and codebooks are provided
in the documentation. Using metapsyTools, all databases can
be analyzed “out of the box” using state-of-the-art statistical methods. To export all
databases and metadata in a machine-readable format, the Metapsy API can be used.
.csv file.
All versions of a database can be downloaded on its respective documentation page.
The metapsyData package
allows you to download the latest version of the databases directly into your R environment.
Databases and their metadata can also be retrieved as JSON exports using the Metapsy API. To get an overview of all available software and data developed as part of the Metapsy project, you can visit the Metapsy documentation. In the documentation, we also provide detailed information for each released database, including digital object identifiers (DOIs) for all versions. All databases and software of the Metapsy project is hosted by the
metapsy-project
organization account on
GitHub.
The
metapsyData package allows to directly download all released
databases using R, including older database versions.
The most recent release of the package and preferred citation can be found here.
The
metapsyTools
package allows to run meta-analyses of Metapsy databases, or databases prepared in the same
format.
The most recent release of the package and preferred citation can be found here.
.xlsx, .csv or
.tsv);
the app validates it, computes effect sizes with metapsyTools, and runs pairwise
models
(meta/metafor) or a network meta-analysis with netmeta.
You can download an editable Word report of the results.To analyse the Metapsy databases themselves in the browser, use the Treatment Effect Explorer. Further details for that tool are shown in its About panel while it is running.
For
metapsyData and metapsyTools packages, technical support
addresses can be found on their respective documentation pages. Users with a Github account can also raise issues on the designated Git repositories hosted by the
metapsy-project account.