average age of a random rat when r runs a mixed effect model which variable is used to predict that a rate of increase or decreases with age how do you interpret mixed effects how to interpret r meaning how to interpret the linear mixed effects model what is a fixed interaction in mixed effect how to interpret the fixed effects of mixed effect r calculate a score for a random interaction how to interpret mixed effect in r what variables does lme model use how to interpret two way interactions in r what is the difference between a trial number and an age score? why does age affect test scores? what model has a fixed effect on age and duration of trial what is the r variable for age and age what is the age in a random trial what is the interaction term of mixed effects? calculating the mce model of random effects what is the difference between an age and a trial number? r how to interpret mixed results