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These are internal documents that we have created and feel might be useful to some clients. They are not intended for publication, and some are still in development.

This page is under construction to meet accessibility guidelines. Please contact us at to request a specific title.

  • Specifying Fixed and Random Effects in R
  • R2 for mixed models
  • Specifying Mixed Models in R, Stata SPSS, SAS, and JMP
  • Post-hoc Analyses in R, Stata SPSS, SAS, and JMP
  • Commonly Used SEM Fit Indices
  • Sample Size
  • Power Analysis Reference Sheet
  • Type III Sums of Squares in R