GLS fixed effects estimator and GLS random effects estimator
Mixed Model Notation - A Simple Explanation
Multi-Level Modeling, Part 1
Using lme4 in R for Mixed Models
Линейные модели со смешанными эффектами — случайные наклоны и взаимодействия | R и SPSS
Фиксированные и случайные эффекты с Tom Reader
Linear mixed effects models
How to decide whether an effect is fixed or random in mixed models
Multicollinearity
Простое объяснение смешанных моделей (иерархические линейные модели, многоуровневые модели)
Multilevel Models: Introducing multilevel modelling | Ian Brunton-Smith
Paul Bürkner: An introduction to Bayesian multilevel modeling with brms
Multilevel Models: Random Intercept Models | Ian Brunton-Smith
What is Multilevel Analysis?
Within effect, between effect, contextual effect, and population average effect
Mixed Effects Models for Longitudinal Data
Multilevel models in R
Lecture 9.1 Introduction to Mixed Effects Models
(Simplified) Linear Mixed Model in R with lme()
Random effects panel regression and mixed effects regression in Stata: A comparison of results