#rstats bat signal:
If any of y'all have experience with multilevel multinomial logistic regression, with {brms}, Kruschke and I could use your help. This is your chance to influence the upcomming textbook.
discourse.mc-stan.org/t/problem-in... 
Problem in multilevel (hierarchical) multinomial logistic regression (with brms)
I have posted a teaser of the issue at my blog, copied below. The data The predicted variable is a categorical response, named resp with levels ‘1’, ‘2’, ‘3’, and ‘4’ (nominal labels, not numerical...