Search found 6 matches

by LiamMS90
Wed Aug 25, 2021 2:14 pm
Forum: MLwiN user forum
Topic: Inclusion of level-one variable increases group level variance in a multilevel negative binomial regression
Replies: 4
Views: 4127

Inclusion of level-one variable increases group level variance in a multilevel negative binomial regression

Hi, I am running a multilevel negative binomial regression predicting the number of crimes a student commits in a year in school. In the empty model the variance associated with the random intercept is virtually 0 and tests suggest that this model is not a better fit than a single level model. When ...
by LiamMS90
Fri Oct 05, 2018 11:37 am
Forum: MLwiN user forum
Topic: Algebraic notation for variance in negative binomial model
Replies: 1
Views: 4611

Algebraic notation for variance in negative binomial model

Dear Colleagues, I'm using version 3.02 to run a two level negative binomial model. There seems to be a difference between the algebraic notation for the level 1 variance displayed in the equations window and the notation in teaching materials referencing earlier versions of mlwin and more generally...
by LiamMS90
Tue Aug 07, 2018 11:37 am
Forum: MLwiN user forum
Topic: Comparing Poisson and Extra Poisson Models
Replies: 2
Views: 4529

Re: Comparing Poisson and Extra Poisson Models

Many thanks!

Liam
by LiamMS90
Sat Jul 28, 2018 2:30 pm
Forum: MLwiN user forum
Topic: Comparing Poisson and Extra Poisson Models
Replies: 2
Views: 4529

Comparing Poisson and Extra Poisson Models

Dear Colleagues, I am trying to compare a two-level Poisson model and a two level Extra Poisson model. From what I have read, in Mlwin this can only be done with a Wald test. I was just wondering how to set up the Wald test or if anyone could point me in the direction of some instructional literatur...