Mixed and Multilevel Models

Online Workshops

The Craft of Statistical Analysis WebinarsThe Craft of Statistical Analysis


Statistically Speaking Trainings


Articles at The Analysis Factor



Journal Articles

  • Arnold, Carolyn L. (1992) An Introduction to Hierarchical Linear Models. Measurement and Evaluation in Counseling and Development, 25, 58-90.
  • Singer, Judith D. (1998) Using SAS PROC MIXED to Fit Multilevel Models, Hierarchial Models, and Individual Growth Models. Journal of Educational and Behavioral Statistics, 24, 323-355.

This articles uses SAS, but the ATS group at UCLA has on their web site papers that go through the examples in HLM, MLwiN, Stata, SPSS, and SPLUS.

Web Sources


Dr. Lesa Hoffman, of the University of Nebraska, has put on her website her entire lecture slides and podcasts for all her classes and workshops, including:

It includes MPlus, SAS, and SPSS examples.