Dr. Crespi is a Professor of Biostatistics in the UCLA Fielding School of Public Health. Her research areas include chronic disease and cancer prevention, cancer epidemiology, cancer survivorship, HIV, obesity, nutrition, reproductive and maternal health, and health disparities. Her statistical methodology interests include the design and analysis of cluster randomized trials and other multilevel intervention studies, sample size and power analysis, and longitudinal modeling. Dr. Crespi has served as president of the Western North American Region of the International Biometric Society and on the Board of Trustees ofthe National Institute of Statistical Sciences. She is a fellow of the American Statistical Association.