Timothy O’Brien

Timothy O’Brien, PhD is a Professor at Loyola University Chicago, with a joint appointment in the Department of Math and Statistics and the School of Environmental Sustainability. His research focuses on environmental statistics, experimental design, and ecological modeling. He holds a PhD in Applied and Environmental Statistics from North Carolina State University (1993) and has held academic appointments at Washington State University and the French Agricultural Institute. His work includes collaborations with industry partners like BASF and toxicologists at Loyola/SES, focusing on pesticide synergy and environmental impact analysis. He teaches courses in environmental statistics, mixed modeling, and experimental design and serves as a campus-wide statistical consultant.

Research highlights include assessing interactions of pollutants on crop yields, funded by USAID and USDA grants, and analyzing synergistic effects of insecticides on pests. His statistical expertise spans optimal experimental design, nonlinear modeling in medicine, and bioassay optimization. Notable publications address ozone trends in Chicago, dengue virus severity modeling, and methamphetamine detection in hair samples. Awards and grants are detailed in his CV, which can be requested separately.