Using the same data as the previous exercise: (a) Formulate a model to predict party identification (which is on a five-point scale) using ideology and demographics with a multilevel ordered...

Using the same data as the previous exercise:

(a) Formulate a model to predict party identification (which is on a five-point scale) using ideology and demographics with a multilevel ordered categorical model allowing both the intercept and the coefficient on ideology to vary over state.

(b) Fit the model using lmer() and discuss your results.