Fig. 2
From: Treatment-seeking behaviour in low- and middle-income countries estimated using a Bayesian model
Graphical representation of the form of the models used. a simplified fixed parameter specification used for model 1 and model 2; b allowing for a random slope (model 3) on the αparameter; c random slope and intercept (model 4) for the α and β parameters, respectively, centering on residence (urban and rural) with correlation estimated via the Wishart prior specification. Model 1 and Model 2 differ only in the prior specification for item difficulty (b) parameter