brainvol: Example data for a meta-analysis of correlations: Human brain...

Description Usage Format References

Description

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.

Usage

1

Format

A data frame with 83 rows and 8 variables:

study_name

short name of each study

year

publication year of each study

r

observed correlations between intelligence and brain size

z

Fisher's z transform of the observed correlations for meta-analysis

z_se

Standard error of Fisher's z transformed observed correlations for meta-analysis

n

sample size of each study

sex

categorical moderator variable: gender of the participants in each study

mean_age

continuous moderator variable: mean age of all participants in each study

References

Pietschnig, J., Penke, L., Wicherts, J. M., Zeiler, M., & Voracek, M. (2015). Meta-analysis of associations between human brain volume and intelligence differences: How strong are they and what do they mean?. Neuroscience & Biobehavioral Reviews, 57, 411-432.


Mkossmeier/metaviz documentation built on April 8, 2020, 2:30 a.m.