Her research program focuses on genomic applications to health. Her past research has examined emotional and behavioral outcomes among women receiving BRCA1/2 testing. Currently, her research involves examining the impact of novel genomic methods used to determine risk for breast cancer recurrence on treatment decision making and quality of life outcomes, as well as examining methods to effectively communicate genetic risk information relevant to common, complex disease. Dr. O'Neill received her Ph.D. in clinical psychology from the University of Delaware.