: This paper by Xing Liu (2009) is excellent for seeing how Stata’s ologit command compares to other software, illustrating how it fits proportional odds models using real educational data.
: For a fast, tutorial-style "paper," the UCLA Stata Data Analysis Examples provide code snippets, output interpretation, and step-by-step guidance for running ologit . Applied Ordinal Logistic Regression Using Stata
: This article on PMC demonstrates using ordinal logistic regression to determine household socioeconomic factors, explicitly recommending the use of partial proportional odds models (PPOM) when covariates violate proportionality. Quick Reference Guides
: For cases where the proportional odds assumption is violated, the seminal paper on the gologit2 command by Richard Williams (2006) is the industry standard for learning how to fit partial proportional odds models in Stata. Applied Research Examples
