Holly O'Rourke is an assistant professor with the measurement and statistical analysis (MASA) group at the T. Denny Sanford School of Social and Family Dynamics. Her research focuses on the intersection of quantitative methodology and prevention research. Specifically, her research examines statistical performance of mediation models, which are used to examine how programs achieve their effects on behavioral outcomes in prevention. She is also interested in longitudinal structural equation models, particularly the latent change score model, which assesses how behavioral outcomes change over time. Other areas in which she has conducted quantitative research include power analysis, and Bayesian and Frequentist performance of effect sizes for mediation. Her statistical work is grounded in real-world questions and issues in prevention, particularly alcohol and substance use. She is currently engaged in research that draws on several of these areas, investigating the longitudinal mediation models that are most appropriate for alcohol use outcomes in treatment and prevention studies.
Dr. O'Rourke is accepting new doctoral students with primary interest in quantitative methods for Fall 2020.