Multilevel modelling: center leve 2 predictors

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psychundergrad
Posts: 1
Joined: Wed Mar 20, 2024 4:22 pm

Multilevel modelling: center leve 2 predictors

Post by psychundergrad »

Hi everyone,

I am new to Jamovi and multilevel modelling, currently using Gamjl for MLM analyses. I am unsure if Jamovi automatically adds group means of level 1 predictors into models at level 2, and grand mean center continuous variables at level 2 (as suggested by my supervisor).

Any insight will be appreciated!
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mcfanda@gmail.com
Posts: 459
Joined: Thu Mar 23, 2017 9:24 pm

Re: Multilevel modelling: center leve 2 predictors

Post by mcfanda@gmail.com »

That would be a very strange default setting. By default all continuous variables are grand mean centered. You can choose "centered clusterwise" in the "covariates scaling" panel if you want to center level 1 predictors at group means.
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