when estimating a mixed model, typically the standard deviation what are the normal deviations for random effects why would you trim down the variances of the random term which term is used by the mixed model to find a residual variance? why is it important to reduce variance in mixed model which term of a mixed model is the smallest of the standard deviations? what is the difference between higher and lower order random effect variance of the lower-order random terms what is the difference between a lower or higher order random term and a higher order variable? how to trim random term what is considered the lower ordered random term when estimating, what is standard deviation of the variance of an expected random variable? what is the difference between a mixed model and a statistical model? what is the smallest standard deviation in a mixed model why are residual variances higher than normal why do random terms have higher standard deviation what is the average variance for a mixed model how do you determine the standard deviation of a random variable which term would be considered higher-order random effect which term describes the smallest variance?