I have a variable “empirical” and it has two category levels, TRUE and FALSE. When put into the brms model, I only need to set prior and will get coeff for “empiricalTRUE” since “empiricalFALSE” is deemed the reference level.
How can I treat them as two parallel levels? Like I can set priors for empiricalTRUE and empiricalFALSE.
I aim to set same priors. I just don’t want to assume the empiricalTRUE has a bigger variability than empiricalFALSE.