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Posts by The Bayesian Meta-Analysis Network

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The snow leopards example

Code accompanying Chapter 2 of our book "Bayesian Meta-Analysis: a practical introduction". This is a simple example with an imaginary data set. It allows the…

bayesian-ma.net/2026/01/09/the-snow-leop...

3 months ago 3 0 0 0
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Simulating correlated data for time points

Learn how to simulate data from studies with multiple time points and other correlation structures. Make better informed decisions…

bayesian-ma.net/2026/01/08/simulating-co...

3 months ago 0 0 0 0
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Simulate randomised controlled trials to learn about meta-analysis

Simulate data from randomised controlled trials in order to learn about…

bayesian-ma.net/2025/12/17/simulate-rand...

4 months ago 0 0 0 0
Using Stata 19 evaluators for Bayesian meta-analysis This is a summary of a workshop Robert gave at the Italian Stata Users' Group in Milan in September 2025. Sightseeing in the Galleria Vittorio Emanuele Stata version 19, released in 2025, introduced new additional flexibility to its Bayesian capabilities which makes Stata now fully flexible for all the BMA models that we discuss in the book. This is a really important development for Stata users, though in general those who are heavily into Bayes move towards probabilistic programming languages like JAGS, Stan or PyMC, and access them through R, Python, or Julia.

Using Stata 19 evaluators for Bayesian meta-analysis

This is a summary of a workshop Robert gave at the Italian Stata Users' Group in Milan in September 2025. Sightseeing in the Galleria Vittorio Emanuele Stata version 19, released in 2025, introduced new additional flexibility to its Bayesian…

5 months ago 1 0 0 0
Going beyond the normal assumptions in random effects models in meta-analysis? Most meta-analyses are based on the random-effects model, the standard go-to framework based on the assumption that each study estimates a different “true” effect and that these true effects follow a normal distribution. This assumption underpins nearly every random-effects analysis performed in clinical and public-health research. But what if that assumption isn’t true? What if study results follow a skewed, bimodal, or heavy-tailed pattern?

Going beyond the normal assumptions in random effects models in meta-analysis?

Most meta-analyses are based on the random-effects model, the standard go-to framework based on the assumption that each study estimates a different “true” effect and that these true effects follow a normal…

5 months ago 1 0 0 0
Online Bayesian MA training with the RSS If you would prefer to get started in Bayesian meta-analysis with a two-day online course on the topic, then consider the course that Robert has been running with the Royal Statistical Society since 2020.

Online Bayesian MA training with the RSS

If you would prefer to get started in Bayesian meta-analysis with a two-day online course on the topic, then consider the course that Robert has been running with the Royal Statistical Society since 2020.

7 months ago 1 0 0 0
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Using the bootstrap to estimate Monte Carlo error of posterior quantiles

Learn how to estimate the Monte Carlo standard error for any quantile…

bayesian-ma.net/2025/08/14/using-the-boo...

8 months ago 2 0 1 0
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New post alert!

Simulate data to learn about inference, using R.

This is code expanding Chapter 1 of the book. More to follow, including implementations in Stata and…

bayesian-ma.net/2025/07/22/simulate-data...

9 months ago 0 0 0 0
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New blog post! Every single binary pairwise meta-analysis model in cmdstanr. And some normal ones too. Contrast-based! Arm-based!

bayesian-ma.net/2025/07/16/all-binary-pa...

9 months ago 1 0 0 0
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When study statistics might have a typo This post expands on subject matter of Chapter 5 of our book, on extracting study statistics for meta-analysis. Uncertainty about a published statistic is one of the most common reasons to consider…

New blog post!
How Bayesian methods can help with your meta-analysis when there is a study statistic that you suspect might be a typo. With lots of lovely code for hands-on learning, and tips on the interpersonal stuff to keep you in a job when the AI comes for you.

bayesian-ma.net/2025/07/15/w...

9 months ago 1 0 0 0

That way we Bayesian meta-analysts can help each other with this fascinating subject, wherever we are in the world. We are keen to include news of new developments, publications, events, etc, so please let us know if you have any news you think we should feature.

9 months ago 0 0 0 0
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The Bayesian Meta-Analysis Network Models, code, and discussion for Bayesian meta-analysts

Breaking news!

Our new website is live at bayesian-ma.net

This is a hub for discussions related to Bayesian meta-analysis. We are adding all the code from the book (and more) over the summer. It is in a blog format so users can comment and ask questions against the relevant topic or software tool.

9 months ago 1 0 1 0
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Bayesian Meta-Analysis: A Practical Introduction Meta-analysis is the statistical combination of previously conducted studies, often from summary statistics but sometimes with individual participant data. It is widespread in life sciences and is gai...

You can get our book with 20% off in the mid-year sale at Routledge (of which CRC Press is part)! Learn Bayesian Meta-Analysis for just 35.99 GBP! www.routledge.com/Bayesian-Met...

9 months ago 1 0 0 0
LinkedIn This link will take you to a page that’s not on LinkedIn

Our book is now officially out, and you can find it here: www.routledge.com/9781032451893 or at your favourite book seller.

It's been a great journey so far. Thanks to all the supportive people over the last few years! We are confident the best is yet to come. Stay tuned for updates!

9 months ago 0 0 0 0
Picture of textbook on Bayesian Meta-Analysis

Picture of textbook on Bayesian Meta-Analysis

Excited to get my hands on this new meta-analysis text by @rlgrant.bsky.social @bma-net.bsky.social

9 months ago 3 1 0 0
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London R | Meetup | Jul 2025 , Thu, Jul 10, 2025, 6:00 PM | Meetup ***\-\-\-\-\-\- Welcome\, London R Users\! \-\-\-\-\-\-*** Welcome back! As before, the event will be brought to you by **Datacove**. We are a Data and Analytics Consulta

Robert will be giving a talk on Bayesian meta-analysis for R users at the next LondonR meetup on 10 July near Old Street tube station. www.meetup.com/londonr/even...

Come along & learn how easy it is to get started, what a fantastic range of packages you can use, and how it helps decision-making

10 months ago 1 0 0 0
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Now on sale! 🎁 📖 You can pre-order "Bayesian Meta-Analysis: a practical introduction" from www.routledge.com/9781032451893 and all good booksellers. The book is being printed right now and will be shipped to you on 27 June 2025.

10 months ago 0 0 0 0
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Part III: "Specific Problems" explores methods including network meta-analysis, individual participant data integration, publication bias modeling, and emerging techniques such as multivariate approaches and population-adjusted indirect comparisons.

10 months ago 0 0 1 0
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Part II: "Getting Inputs and Crafting Outputs" addresses the practical challenges of extracting statistics from published literature, eliciting expert priors, and effectively communicating meta-analytic findings.

10 months ago 0 0 1 0
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Part I: "The Fundamentals" establishes core statistical inference principles and Bayesian methodology, progressing through common effect and random effects meta-analysis frameworks.

10 months ago 0 0 1 0
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We are delighted to unveil the table of contents for our forthcoming book "Bayesian Meta-Analysis: a practical introduction".

You can pre-order the book from Friday 6 June at: www.routledge.com/9781032451893

The book is organized in three parts:

10 months ago 1 0 1 0
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StanBio Connect 2025 – StanBio Advancing Biomedical Research with Stan

Robert will be speaking at StanBio Connect on 30 May (online 1300-2000 UTC) on Bayesian meta-analysis in Stan and brms. stanbio.org

11 months ago 0 0 0 0
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"Bayesian Meta-Analysis: A Practical Introduction", the new book by your friendly guides, Robert and Gian Luca, will be out in June on CRC Press! Here is the text from the back cover to give you an overview.

www.routledge.com/9781032451893

1 year ago 2 0 0 0

This book fills a gap, making Bayesian meta-analysis accessible to researchers across disciplines.

It introduces seven software options:
BUGS
JAGS
Stan
Stata
JASP
bayesmeta
brms

...so that you can decide which one is right for your work.

Follow this account for weekly updates, code, and tips!

1 year ago 2 1 0 0
book front cover

book front cover

We're delighted to present the cover of the new book "Bayesian Meta-Analysis: a practical introduction", by Robert Grant & Gian Luca Di Tanna, which will be released by CRC Press in June 2025!

Follow this account for weekly updates...

www.routledge.com/Bayesian-Met...

1 year ago 5 1 0 0