Phone: (352) 392-1941, X237
Fax: (352) 392-5175
E-Mail: littell "at" stat "dot" ufl "dot" edu
Honors and Professional Activities
Fellow, American Statistical Association, 1986
Distinguished Achievement Medal, Section on Statistics and Environment,
Professorial Excellence Program Award, University of Florida, 1998
University of Florida Research Foundation Professor, University of Florida, 2000-2002
Distinguished Alumnus Award, Emporia State University, 2003
Mixed Linear Models
Littell, R.C., Henry, P.R., and Ammerman, C.J. "Statistical Analysis of Repeated Measures Data Using SAS Procedures," J. Animal Science, 76, 1998, 1216-1231.
Littell, R.C., Pendergast, J., and Natarajan, R., “Modelling Covariance Structure in the Analysis of Repeated Measures Data,” Statistics in Medicine, 19, 2000, 1793‑1819
Littell, R.C. “Analysis of Unbalanced Mixed Model Data: A Case Study Comparison of ANOVA versus REML/GLS,” Journal of Agricultural, Biological, and Environmental Statistics, 7, 2002, 472-490
Hartless, G., Booth, J.G., and Littell, R.C., “Local Influence of Predictors in Multiple Linear Regression,” Technometrics, 45, 2003, 326-332
Turner, R.E., Langkamp-Henken, B., Littell, R.C., Lukowski, M.J., Suarez, M.F., “Comparing Nutrient Intake from Food to the Estimated Average Requirements shows Middle- to Upper-income Pregnant Women Lack Iron and Possibly Magnesium,” J. of The American Dietetic Association, 103, 2003, 461-466
Kratzer, D.D., and Littell, R.C., “Appropriate Analyses to Compare Dose Responses of Two Methionine Sources,” J. Poultry Science, 2006, 947-954.
Littell, R.C., Milliken, G.A., Stroup, W.W., Wolfinger, R.D. and Schabenberger, O. (2006), SAS for Mixed Models, 2nd ed., SAS Institute Inc, Cary NC
Littell, R.C., Stroup, W.W., and Freund, R.J. (2002). SAS for Linear Models, 4th ed., SAS Institute, Inc., Cary, NC.
B.S. (1964) Emporia State University, Mathematics
M.S. (1966) Oklahoma State University, Mathematics
Ph.D. (1970) Oklahoma State University, Statistics