Dr. Crespi is a Professor of Biostatistics in the UCLA Fielding School of Public Health and is affiliated with the Cancer Prevention and Control Research Center of the Jonsson Comprehensive Cancer Center. Her research areas include cancer prevention and control, cancer epidemiology, cancer survivorship, HIV, obesity, nutrition, physical activity, health disparities, health psychology and quality of life. Her statistical methodology interests include design and analysis of cluster randomized trials and other intervention studies, sample size and power analysis, and longitudinal modeling of chronic disease processes. Dr. Crespi has served as president of the Western North American Region of the International Biometric Society and on the Board of Trustees of the National Institute of Statistical Sciences. She is a fellow of the American Statistical Association and has served on review panels for the National Institutes of Health and the University of California Cancer Research Coordinating Committee.