What model is used for overdispersed count data?
A) gamma
B) poisson
C) negative binomial
D) cloglog

Question

Quizplus · Accepted Answer

By rule of thumb, overdispersion occurs when the variance of the DV is greater than its mean. In statistical packages, overdispersion is calculated using the deviance. When count data are overdispersed, Poisson regression is dropped in favor of some other technique, usually negative binomial regression.

What Model Is Used for Overdispersed Count Data