Experimental Design
The experts listed here were chosen to represent the principal fields of research at RTI because of their professional experience, published writings, and peer recognition. To request an interview or an expert opinion of any of these individuals, please contact either Lisa Bistreich (919-316-3596; lbistreich@rti.org) or Patrick Gibbons (919-541-6136; pgibbons@rti.org).
The following experts are active in the field of Experimental Design.
Related Experts
Biostatistics
Longitudinal and Correlated Data Analysis
Clinical Trial Design and Analysis
Linear and Generalized Linear Models
Senior Research Statistician
- dwallace
rti.org - Research Triangle Park, NC
Biography
Dennis Wallace, PhD, joined RTI from Rho Federal Systems Division, Inc., where he was the principal investigator for statistical and clinical coordinating centers supporting research in infectious and autoimmune diseases. He specializes in the design and operation of clinical trials and the analysis of clinical trial data as well as data from environmental, epidemiological, and basic sciences studies. Dr. Wallace has provided statistical support and statistical leadership for clinical trials and epidemiologic studies of cardiovascular disease and stroke, clinical immunology, infectious diseases, substance abuse, developmental disabilities, geriatric medicine, sickle cell, and injury prevention. He has expertise in longitudinal and correlated data analysis and in linear and generalized linear models, with particular expertise in linear mixed models and the generalized estimating equation and nonlinear mixed model extensions of generalized linear models. He also has expertise in clinical trial design with emphasis on complex power calculations and on the design of cluster-randomized trials. Read More…
Survey Weight Adjustment
Sample Design and Survey Analysis
Senior Statistician
- rwwrti.org
- Research Triangle Park, NC
Biography
Roy Whitmore, PhD, is a senior statistician who joined RTI in 1980. He is expert in design and analysis of complex sample surveys. His primary areas of application have been human exposure assessment surveys and postsecondary education studies. He recently was principal investigator for an EPA STAR grant that developed a data collection platform for human exposure-related behaviors, including time/activity/location/exertion-level data, dietary data, and data on use of consumer products. He was sampling task leader for such high-visibility EPA studies as the EPA Region 5 field test of the National Human Exposure Assessment Survey. He has served as task leader for sampling, weighting, imputation, and reporting for several postsecondary education surveys for the National Center for Education Statistics. He has published in the Journal of Exposure Science and Environmental Epidemiology, Environmental Health Perspectives, Environmental Science and Technology, Atmospheric Environment, Journal of Official Statistics, and Journal of the American Statistical Association. Read More…