Re: [R] Overdispersion, AIC and mixed models

Julien Martin usherbrooke.ca> writes: > > Hi > > I want to do use AIC for model selection on mixed model. However, before > going deeper in the model selection, I want to assess is there is > overdispersion with the full model in order to decide if I should use QAIC > instead of AIC. > > Is t

[R] Overdispersion, AIC and mixed models

Hi I want to do use AIC for model selection on mixed model. However, before going deeper in the model selection, I want to assess is there is overdispersion with the full model in order to decide if I should use QAIC instead of AIC. Is there a way to compute a chisquare goodness of fit test for