Dr. Katrina Devick is currently a post doctorate fellow with Brent Coull at the Harvard T.H. Chan School of Public Health. She received her PhD in Biostatistics from Harvard University in 2018. Her research interests lie in developing new statistical methodology for causal mediation analysis. She pioneered a density regression approach to estimate mediation effects when a normality assumption for the mediator variable is not suitable. Currently, she is working on developing flexible mediation methods to be used when the exposure of interest is an environmental mixture.