Wolfgang Viechtbauer

… to my website. Below you can find my contact information and office address (with directions). In case you are wondering who the heck I am, you could consider reading my (not so really) short profile.

On this site, you can also find my curriculum vitae, a list of my publications and presentations, links to some software I (co)authored, and information about a number of courses I teach on a semi-regular basis (e.g., a meta-analysis course, an introduction to R course, and an ESM data analysis course). I also do regular live streams on R and statistics in case you are into that sort of thing.

You might also be here because of the metafor package (a free and open-source add-on for conducting meta-analyses with the statistical software environment R), which I am the author of. More information about the package and its ongoing development can be found on the metafor package website. If you need help with using the package, see here.

2025-04-30: We recently published a paper at Behavioral Research Methods describing the findings from a comprehensive simulation study on the performance of various tests and methods for constructing confidence intervals for the scale coefficients in meta-analytic location-scale models. See https://doi.org/10.3758/s13428-025-02622-5 for further details.

2025-02-04: A new version (1.4-0) of the metadat package has been released on CRAN.

2025-01-28: A new version (4.8-0) of the metafor package has been released on CRAN.

2025-01-06: I just updated the schedule for my office hours and my live streams.