what is the purpose of mixed effect linear models how do you formulate your linear mixed effects model? how to do a linear mixed effect model how to fit mixed effects in a regression model how to formulate mixed effect models how to model mixed effects what is linear mixed effects what is the mixed effect linear model with date and date how to fit a mixed effect linear model how to fit mixed effects model what should the unit price be how do you find the unit price of a drug which function does lmer use when to use linear mixed effects how to form a linear mixed effects linear mixed effect data when evaluating linear mixed effects why do i use cross random effect linear models how do you fit mixed effects into lmer which statement of a linear mixed effect model should be used to assess the effects of time?