Dr. Goncy's program of research focuses on the importance of relationships (e.g., romantic, peer, parent-child) on adolescent and young adulthood outcomes, specifically dating abuse, other forms of violence, victimization, and substance use. Specifically, her main research interests are understanding: 1) the etiology of aggression in adolescence and young adulthood including the identification of risk and protective factors and consequences such as victimization and adjustment difficulties, and 2) the development of other externalizing behaviors (e.g., substance use, delinquency) and resulting victimization and their relation to risk and protective factors. Secondary interests include person-centered and variable-centered approaches to measurement, treatment implementation and fidelity, and development and evaluation of prevention and intervention programs in these areas. She also applies innovative methods and statistical techniques to promote science on issues such as measurement, longitudinal modeling, and use of multi-method or cross-informant data.