Poisson versus negative binomial regression in SPSS (2018)

This video provides a demonstration of Poisson and negative binomial regression in SPSS using a subset of variables constructed from participants' responses to questions in the General Social Survey (GSS). The video covers reasons why you might use these procedures generally and the relationship between the procedures. It covers the topic of dispersion and why you might choose to model your data using negative binomial regression (i.e., when you have overdispersion in your data) as opposed to Poisson regression. This video demonstrates Poisson and Negative binomial regression when you DO NOT have an offset variable. Be sure to see my other video on these procedures that include the use of offset variables (   • Видео  ).

A copy of the dataset used in this video can be downloaded here:
https://drive.google.com/file/d/1sUAH...

For a nice discussion of these procedures (including the discussion of how to identify overdispersion using the methods used in this video), you should check out this resource (which informed this video presentation): https://www.routledge.com/Multilevel-...

For more instructional videos and other materials on various statistics topics, be sure to my webpages at the links below:

Introductory statistics:
https://sites.google.com/view/statist...
Multivariate statistics:
https://sites.google.com/view/statist...