What is a linear mtr?

A linear MTR, or linear mixed-effects model, is a statistical model that accounts for both fixed effects (variables that are consistent across individuals) and random effects (variables that vary across individuals or groups) in analyzing data. It is particularly useful in scenariOS where data are grouped or clustered, allowing for more accurate estimates of relationships by considering the inherent variability within the data. Linear MTRs are commonly used in fields like psychology, ecology, and medicine to handle repeated measures or hierarchical data structures.