Bonjour/hi, and welcome to learn-mlms.com. This website will teach you the fundamentals about multilevel modelling, from why and when you would use them and how to do so for various research questions and data structures.

This website is free to use and is licensed under the Creative Commons Attribution 4.0 International, so instructors can feel free to borrow and alter materials to structure their own courses. If you notice any errors or would otherwise like to contribute, feel free to file an issue on GitHub.

About the Authors

Mairead Shaw is a graduate student in the Quantitative Psychology and Modelling area at McGill University. Her research interests center around effect sizes in multilevel models and measurement considerations for multi-group and replication research.

Dr. Jessica Flake is an Assistant Professor of Quantitative Psychology and Modelling at McGill University. She received an MA in quantitative psychology from James Madison University and a a PhD in Measurement, Evaluation, and Assessment from the University of Connecticut. Her work focuses on technical and applied aspects of psychological measurement including scale development, psychometric modelling, and scale use and replicability.


These materials were made possible by funding from the APS Fund for Teaching and Public Understanding of Psychological Science. You can read more about the fund here.