From deviance, DIC, AIC, etc., to leave-one-out cross-validation

Maren Vranckx writes: I am writing in connection with a post on your blog on 22 June 2011 about “Deviance, DIC, AIC, cross-validation, etc”. In this post, you mentioned that you and a student worked about DIC convergence. Can you specify how you did the research? Did you discover a reason for slow convergence of …