can aic pick a mixed effect model does aic always pick the best model what is the definition of mixed effects model does aic validate the models? what is aic for mixed effects aic and cp are interpreting the models prediction errors. how are when comparing two models how to use cp and aic how can a mixed effect model be compared when to use aic for mixed effects does aic pick the best mixed effects model how mixed effects model is validated why use aic how is mixed effects model compared what is the function of the aic in mixed effects models? how can a mixed effects model be compared what is aic used for? how do mixed effects models compared how is mixed effects model compared do aic and aic pick same model how are mixed effects models usually compared and/or validated?