Dr. Cornelius conducts research focused on understanding health behaviors in the social context in which they are performed. In particular, her work explores processes of health-related power and influence, interdependence in change over time, and how partner support can both facilitate and/or undermine health-promoting behaviors. Recent projects include an examination of how the presence of close others (i.e., a spouse/partner, a child) in the Emergency Department (ED) impacts patients’ ED experience, the effect of romantic partners on blood pressure both short and long term, and a qualitative study describing couples’ experiences following an acute coronary syndrome (ACS). Dr. Cornelius is also exploring novel applications of dyadic analysis to interdependent, individual-level processes. As an RCC Co-Investigator, Dr. Cornelius oversees the scientific development of the Measures Repository and works with external scientists for Repository engagement and data processes.