Parametric Bootstrap and Kenward Roger Based Methods for Mixed
Model Comparison
Ulrich Halekoh <uhalekoh@health.sdu.dk> Søren Højsgaard <sorenh@math.aau.dk>
Test in mixed effects models.

   Attention is on mixed effects models as implemented in the
 'lme4' package.

   This package implements a parametric bootstrap test and a Kenward Roger 
 modification of F-tests for linear mixed effects models and a parametric bootstrap 
 test for generalized linear mixed models.
Matrix (>= 1.2.3), parallel, MASS, methods