brainvol

A dataset consisting of 83 empirical studies used in the meta-analysis of
Pietschnig, Penke, Wicherts, Zeiler, and Voracek (2015) on the associations between human brain volume and
intelligence (measured full-scale IQ) in healthy participant samples.

datasets

A compilation of functions to create visually appealing and information-rich
plots of meta-analytic data using 'ggplot2'. Currently allows to create forest plots,
funnel plots, and many of their variants, such as rainforest plots, thick forest plots,
additional evidence contour funnel plots, and sunset funnel plots. In addition, functionalities
for visual inference with the funnel plot in the context of meta-analysis are provided.

Michael Kossmeier

metaviz

Forest Plots, Funnel Plots, and Visual Funnel Plot Inference for
Meta-Analysis

Ulrich S. Tran

Martin Voracek

brainvol function

A data frame with 83 rows and 8 variables:<dl class="dl-horizontal">
 <dt>study_name</dt><dd>short name of each study</dd>
 <dt>year</dt><dd>publication year of each study</dd>
 <dt>r</dt><dd>observed correlations between intelligence and brain size</dd>
 <dt>z</dt><dd>Fisher's z transform of the observed correlations for meta-analysis</dd>
 <dt>z_se</dt><dd>Standard error of Fisher's z transformed observed correlations for meta-analysis</dd>
 <dt>n</dt><dd>sample size of each study</dd>
 <dt>sex</dt><dd>categorical moderator variable: gender of the participants in each study</dd>
 <dt>mean_age</dt><dd>continuous moderator variable: mean age of all participants in each study</dd>
 </dl>

Format

Example data for a meta-analysis of correlations: Human brain volume and intelligence — brainvol

A data frame with 83 rows and 8 variables:<dl class='dl-horizontal'>
 <dt>study_name</dt><dd>short name of each study</dd>
 <dt>year</dt><dd>publication year of each study</dd>
 <dt>r</dt><dd>observed correlations between intelligence and brain size</dd>
 <dt>z</dt><dd>Fisher's z transform of the observed correlations for meta-analysis</dd>
 <dt>z_se</dt><dd>Standard error of Fisher's z transformed observed correlations for meta-analysis</dd>
 <dt>n</dt><dd>sample size of each study</dd>
 <dt>sex</dt><dd>categorical moderator variable: gender of the participants in each study</dd>
 <dt>mean_age</dt><dd>continuous moderator variable: mean age of all participants in each study</dd>
 </dl>

brainvol: Example data for a meta-analysis of correlations: Human brain volume and intelligence

Description

Usage

Arguments

Format

References