why is rt a variable? what is considered a variable of the logistic logistic link function what is the difference between a mean, average, and a mean in a mixed-models experiment which of the following is based on the glmm function which variable produces the grand mean of the lmer model? what is the difference between the grand mean and the mean of the rt model? what is the difference between a grand mean and a model rt what is the significance of an rt model in data analysis how do you determine the correlation of the variables used in mixed models why would a glmm be considered a descriptive statistic what is rt model mean what is the correct descriptive of the variable variable for a mixed model when to look at the z-score in mixed model experiments? what should descriptive statistics be used for what is true about the grand mean in an RTL model? which model produces mean what is the difference in mean and mean in error rates in an rt model? what are the descriptive parameters of an experiment? how many ms does an experiment produce what is the correct parameter of the mixed model for an experiment?