__________ is used in the regression model of mixed-effects model for a patient. when do you get the f value of the day in nlme what kind of model is my model what is nlme in statistics what is the nlme for a mixed-effects model how to report linear mixed effects model how to show effects of mixed methods how to report results on linear mixed effects models how to do mixed effects analysis how to describe an experimental study with linear mixed effects what is the model for mixed-effects testing how do you use nlme in r what is the r variable for the linear mixed effect model what is the p value for my model in a regression analysis? dv definition in a mixed model mixed effects analysis what is the function of multilevel model how to report mixed effects model why use multilevel model what is meant by the variable day f value of treatment