For Problem 10.11, construct a model that describes agreement between neurologists for the two sites simultaneously.

Data from Problem 10.11:

Table 10.19 displays multiple sclerosis diagnoses for two neurologists who classified patients in two sites, Winnipeg and New Orleans. The diagnostic classes are (1) certain; (2) probable; (3) possible; and (4) doubtful, unlikely, or definitely not. For the New Orleans patients, study the agreement using (a) the independence model and residuals, (b) more complex models, and (c) kappa. Interpret each.

Table 10.19:

Winnipeg Neurologist Winnipeg Patients 3 4 New Orleans Patients New Orleans Neurologist 3 2 4 5 11 14 1 5 3 2 3 11 13 38 3 5 3 33 10 3 4 3 4 4 14 10