Gregory Aarons, PhD, is a professor in the Department of Psychiatry at UC San Diego (UCSD) and co-director for the Center for Organizational Research on Implementation and Leadership (CORIL). He is another significant contributor for SMART-DAPPER. Dr. Aarons’ research focuses on implementation science with emphases on measurement; study design; conceptual frameworks; management and organizational issues; and quality of care, policy and evidence-based practice implementation in public sector mental health, HIV prevention, substance abuse treatment, and social services settings as well as in studies in Mexico and sub-Saharan Africa. He has served as an implementation science trainer for the Fogarty International Center/NICHD/PEPFAR PMTCT Alliance, focusing on implementation in sub-Saharan Africa. He has also tested implementation strategies and identified key factors likely to enhance effective implementation in organizations and in health and allied health service systems.