The Proportional Odds Model: Simulation Studies and Predictive Accuracy

The goal of the research that lead to this paper was chiefly to examine the proportional odds model (McCullagh, 1980)—how it fits and how it predicts. This model can be seen below in (1). It is used to model categorical response data when the response categories have a natural ordering. Let J be the number of response categories. Let Y be the random respons