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David DeMatteo

David DeMatteo, JD, PhD

Director of JD/PhD Program
Associate Professor
Department of Psychology
Office: Stratton 338
Phone: 215.553.7107

Additional Sites: The DeMatteo Lab


  • BA (High Honors), Psychology, Rutgers University
  • MA and PhD, Clinical Psychology, MCP Hahnemann University
  • JD (Magna Cum Laude), Villanova Law School

Curriculum Vitae:

Curriculum Vitae (PDF)

Research Interests:

  • Psychopathy
  • Forensic mental health assessment
  • Testing in forensic assessment contexts
  • Drug policy research

How We Make a Difference:

The DeMatteo Lab focuses on conducting social science research that can be used to inform practice and policy in the criminal justice system, particularly as those practices and policies relate to offenders with substance use and/or mental health problems. By examining juror and judicial decisions in criminal justice contexts, evaluating the effectiveness of novel criminal justice interventions, and studying how courts use social science evidence, the DeMatteo Lab is contributing to the continued development of the criminal justice system. Through collaborations with a number of criminal justice entities, our work is designed to promote the consideration of social science research by courts, legislatures and policymakers.


David DeMatteo, JD, PhD, ABPP, is an associate professor of Psychology and an associate professor of Law at Drexel University. He is also the Director of Drexel’s JD/PhD Program in Law and Psychology. His research interests include psychopathic personality, forensic mental health assessment, offender diversion, and drug-involved criminal offenders. His research has been funded by several federal agencies, state agencies, and private foundations. DeMatteo has co-authored several books and more than 100 articles and book chapters – he has given over 200 presentations at national and international conferences. He was Chair of APA’s Committee on Legal Issues. He is a Fellow of the American Psychological Association (Divisions 12 and 41), a Fellow of the American Academy of Forensic Psychology, and board certified in forensic psychology by the American Board of Professional Psychology. DeMatteo is a past President of the American Psychology-Law Society (APA Division 41).