Week 5

Poission Regression

Materials for meeting on

February 27, 2023

Before Class

Articles

Coxe, S., West, S. G., & Aiken, L. S. (2009). The Analysis of Count Data: A Gentle Introduction to Poisson Regression and Its Alternatives. Journal of Personality Assessment, 91(2), 121–136. https://doi.org/10.1080/00223890802634175
Winter, B., & Bürkner, P.-C. (2021). Poisson regression for linguists: A tutorial introduction to modelling count data with brms. Language and Linguistics Compass, 15(11), e12439. https://doi.org/10.1111/lnc3.12439
- How does the Poisson distribution differ from other distributions, such as the normal distribution?
- How do we interpret the parameters of the poisson?
- What are the assumptions of Poisson regression?
- What is overdispersion?
- How is poisson related to the negative binomial?

Optional

Ryan, W. H., Evers, E. R. K., & Moore, D. A. (2021). Poisson Regressions: A Little Fishy. Collabra: Psychology, 7(1), 27242. https://doi.org/10.1525/collabra.27242

Videos

Introduction to Poisson regression

After Class

Kabacoff, R. I. (2022). *R* in Action* chapter 13.
Running Poisson regression in R