References

Bates, Douglas. 2005. “Fitting Linear Mixed Models in R” 5.

Brown, Violet A. 2021. “An Introduction to Linear Mixed-Effects Modeling in R.” Advances in Methods and Practices in Psychological Science 4 (1): 2515245920960351. https://doi.org/10.1177/2515245920960351.

Pinheiro, José C., and Douglas M. Bates. 2000. Mixed-Effects Models in S and S-PLUS. New York: Springer. https://doi.org/10.1007/b98882.