Week 5
Ordinal Regression
Before class
Articles
The R package brms (which is a Bayesian data analysis package) is used in the papers below. While it is a Bayesian technique, the output is similar to a regression output.
Liddell, T. M., & Kruschke, J. K. (2018). Analyzing ordinal data with metric models: What could possibly go wrong? Journal of Experimental Social Psychology, 79, 328–348. https://doi.org/10.1016/j.jesp.2018.08.009
Bürkner P-C, Vuorre M. Ordinal Regression Models in Psychology: A Tutorial. Advances in Methods and Practices in Psychological Science. 2019;2(1):77-101. doi:10.1177/2515245918823199
Veríssimo, J. (2021). Analysis of rating scales: A pervasive problem in bilingualism research and a solution with Bayesian ordinal models. Bilingualism: Language and Cognition, 24(5), 842-848. doi:10.1017/S1366728921000316
Questions
Describe what is meant by an ordinal variable
Describe how an ordinal variable can be represented using a latent continuous variable
What is cumulative probability?
List some common applications of ordinal regression in your field
How do you interpret the coefficients in an ordinal regression model?
What is the proportional odds assumption underlying ordinal regression? What do you do when it is violated?