Understanding Bayes

This is an ongoing series called Understanding Bayes, in which I explain essential Bayesian concepts in an easy to understand format. The only reason more researchers aren’t using Bayesian methods is because they don’t know what they are or how to use them. The math can look complicated, and the theorems can be intimidating, but each tutorial includes intuitive graphics that will help you understand the core ideas underlying each concept. R-code is also provided so that you can play around with, reproduce, and extend the demonstrations as you see fit.

Understanding these concepts is crucial for understanding what Bayesian inference is all about. There are many posts in the queue so stay tuned! If there is a concept not in the queue that you’d like for me to cover feel free to leave a comment below. 🙂 Plus, I’ve added a list of other Bayes bloggers who are writing excellent introductions. If you’d like to start using Bayesian methods see the tutorial videos I’ve made with the JASP development team.

Completed posts

  1. A look at the likelihood (link)
  2. Updating priors via the likelihood (link)
  3. Visualization of the Bayes factor (link)
  4. Evidence vs. Conclusions (link)
  5. How to become a Bayesian in eight easy steps (link1, link2) (PDF of the paper)
  6. What is the maximum Bayes factor for a given p value? (link)

Posts in the works

  1. A recipe for Bayesian replication
  2. Posterior probabilities vs. posterior odds
  3. Visualization of Markov chain Monte Carlo
  4. Predicting the future
  5. Replication Bayes factors (related)
  6. Objective vs. subjective Bayes
  7. Prior probabilities for models vs. parameters
  8. Strength of evidence vs. probability of obtaining that evidence (related)
  9. The Jeffreys-Lindley paradox
  10. When do Bayesians and frequentists agree and why?
  11. Bayesian Model Averaging
  12. Bayesian bias mitigation (related1, related2)
  13. Bayesian updating over multiple studies
  14. Does Bayes have error control? (related)

Introductory talks about Bayes

  1. Bayesian statistical concepts: A gentle introduction (slides; blog post)
  2. A Bayesian perspective on the RPP (slides; video; blog post)

Other great intros to Bayes

I am not the only one blogging on Bayes! This is a list of my favorite introductions to Bayesian inference.

  1. Bayesian Data Analysis and Cognitive Modeling 2015 (Course Materials). By Michael Franke and Fabian Dablander.
  2. Bayesian statistics: Why and how (link). By Fabian Dablander
  3. The Great Statistical Schism (link). By Brendon Brewer
  4. Easy Bayes (lecture notes). By Brendon Brewer