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Results tagged with overdispersion
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user 86244
Overdispersion is when there is greater variability than there 'ought' to be in the data. Eg, the variance of counts is often greater than the mean, whereas the variance of a Poisson should equal the mean.
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Cause of overdispersion and multilevel model [closed]
I found that, because of some overdispersion in the data, a negative binomial regression seemed better than a poisson. … I was also wondering whether it is possible to test for overdispersion in SPSS in the multilevel context. …
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