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Mixed (aka multilevel or hierarchical) models are linear models that include both fixed effects and random effects. They are used to model longitudinal or nested data.

5 votes
2 answers
5k views

I want to use pvals.fnc() to get p-values for a lmer() model but cannot get rid of correlati...

My problem can be summarized very simply: I'm using a linear mixed-effects model and I am trying to get p-values using pvals.fnc(). The problem is that this function seems to have some trouble estimat …
Sol's user avatar
  • 285
3 votes
2 answers
3k views

Alternatives to pvals.fnc to compute confidence intervals for fixed effects?

Lately I keep encountering the same problem and I'm wondering whether other people have been able to get around it. I'm running a mixed effects model using lmer(). My model has by-subject and by-item …
Sol's user avatar
  • 285