Intro to mixed models

Content

Introduction to mixed models

Learning objectives

At the end of the session, students should be capable of

determining the structure of an experimental design with random and fixed effects
correctly determining whether effects are crossed or nested
setting up a linear mixed model

Readings

Chapter 6 Random and Mixed-Effects Models of Lukas Meier’s ANOVA and Mixed Models: A Short Intro Using R]
Chapter 10 of the course notes

Complementary readings

Chapters 10 and 15 of Maxwell et al. (2017).

Slides

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Code

R script
SPSS script

Tip

Fun fact: If you type ? (or shift + /) while going through the slides, you can see a list of slide-specific commands.

References

Maxwell, S. E., Delaney, H. D., & Kelley, K. (2017). Designing experiments and analyzing data: A model comparison perspective (3rd ed.). routledge. https://doi.org/10.4324/9781315642956