Dr. Coull’s current research interests fall into the broad areas of categorical data analysis and semiparametric regression modeling. Recent topics in the analysis of categorical data include capture-recapture mixture models, random effect models for multiple discrete binary outcomes, confidence intervals for a binomial proportion, and order-restricted methods for stratified contingency tables. In the area of semiparametric regression modeling, he has focused on the development of such models for complex data structures often encountered in public health settings, such as cross-over and longitudinal settings.

Dr. Coull is also involved in collaborative research in environmental health. Current projects focus on the health effects of air pollution and the interrelationship between the microbial community and pollutants in the New Bedford Harbor area.