This video explains what is meant by a posterior predictive check and why this is a vital part of model development in the Bayesian framework.

This video is part of a lecture course which closely follows the material covered in the book, "A Student's Guide to Bayesian Statistics", published by Sage, which is available to order on Amazon here: https://www.amazon.co.uk/Students-Gui...

For more information on all things Bayesian, have a look at: https://ben-lambert.com/bayesian/. The playlist for the lecture course is here:    • A Student's Guide to Bayesian Statistics