random effects specification lmer specification lmer probability test for variables how do i test for fixed effect what test will be performed on the lmer which random effect specification is most predictive? what lmer test is useful to test a fixed effect on a variable? what is fm1 lmer likelihood ratio test what does lmer test for what is lmer and lmer what type of random effects is most predictive which random effects specification is the most predictive how to test for fixed effects what kind of randomness is a model specification? when to use the lmer model what test is used to test a lmer model which variable lmer is best why is lmer used can random effects be tested using lmer