Rick L. Williams
Statistician
Rick L. Williams, PhD, has more than 30 years of experience in public health research as a statistician and is a fellow of the American Statistical Association. He designs population surveys, observational studies, and randomized clinical trials, and develops and applies analysis methods for correlated and sample survey data. Dr. Williams has extensive experience with health studies of women, infants, and children. He has experience in preclinical and early-phase drug development studies, such as population pharmacokinetic studies, and in late-phase pharmaceutical outcomes research. He frequently conducts workshops and training classes on the use of appropriate statistical analysis methods for cluster-correlated, longitudinal, or repeated measures data, such as generalized estimating equations for marginal models, hierarchical linear and nonlinear mixed models, and multilevel models. He was selected by a peer-review committee to serve as a fellow for one year with U.S. Department of Agriculture.
Education
PhD, Biostatistics, University of North Carolina at Chapel Hill; MS, Statistics, Iowa State University; BS, Mathematics, Arizona State University.
Publications
Bieler, G.S., Brown, G.G., Williams, R.L., & Brogan, D.J. (Mar 2010)
Berzofsky, M., Williams, R., & Biemer, P. (Aug 2009)
McCann, M.F., Baydar, N., & Williams, R.L. (Oct 2008)
Williams, R.L., Mihlan, G.J., & Tobia, A.J. (Aug 2008)
Berzofsky, M.E., Welch, B.L., Williams, R.L., & Biemer, P. (Feb 2008)
Expertise
- Biostatistics
- Observational Studies
- Longitudinal and Correlated Data Analysis
- Sample Design and Survey Analysis