very short primer

Recalculating Effect Sizes for Luo et al. 2020

This post walks you through the reanalysis of a meta-analysis with extremely large effect sizes.

A very short primer on updating R to 4.0.0 and re-installing all packages

My unspectactular experience updating R to 4.0.0

How to set up the 3-level structure for meta-analyses

How to set up the three-level structure for meta-analyses using the R package metafor.

A very short primer on standardized mean differences for meta-analyses

A very short primer on the d-family and pretest-posttest-control (PPC) designs for calculating standardized mean differences.

A very short primer on multi-level meta-analyses

This post walks you through the problem of effect size dependency and provides a solution with R code.