Professor DeMatteo's research interests include psychopathy, forensic mental
health assessment, drug policy, and offender diversion. His research has been funded by
the National Institute on Drug Abuse, Pennsylvania Department of Health, Pennsylvania
Commission on Crime and Delinquency, and American Psychology-Law Society. 

Professor DeMatteo is licensed as a psychologist in Pennsylvania, where he conducts
forensic mental health assessments of juveniles and adults. He has co-authored three
books in his field, with two more forthcoming, and more than 60 articles and book
chapters. He is the associate editor of Law and Human Behavior, on the editorial boards
of Criminal Justice & Behavior and the Open Access Journal of Forensic Psychology,
and a reviewer for more than 15 scientific journals. Professor DeMatteo was chair of the
American Psychological Association's (APA) Committee on Legal Issues in 2011, and he
is currently council representative to APA for the American Psychology-Law Society (Div.
41 of APA). 

Professor DeMatteo received a B.A. with high honors in psychology from Rutgers
University, an M.A. and Ph.D. in Clinical Psychology from MCP Hahnemann University, and a
J.D., magna cum laude, from the Villanova University School of Law. He was also the
executive editor of the Villanova Law Review and a member of the Order of the Coif.



Community-based alternatives for justice-involved individuals with severe mental illness: Diversion, problem-solving courts, and reentry (with Kirk Heilbrun, Kento Yasuhara, Stephanie Brooks-Holliday, Sanjay Shah, Christopher King, Anne Bingham DiCarlo, Danielle Hamilton, and Casey Laduke), Criminal Justice and Behavior (2012)

Community-based alternatives to conviction and imprisonment for adult offenders with severe mental illness are receiving...



The application of risk-need-responsivity to risk assessment and intervention-planning: Opportunities, current limitations, and relevant research needs (with Stephanie Brooks-Holliday; Kento Yasuhara; Sanjay Shah; Anne Bingham; Chris King,; Danielle Hamilton; Anna Danylyuk; and Kirk Heilbrun), American Psychology-Law Society News (2011)

The theory of risk-need-responsivity (RNR) has been widely recognized as an empirically-supported model of effective...



The disconnect between assessment and intervention in the risk management of criminal offenders (with Elizabeth Hunt, Ashley Batastini, and Casey LaDuke), Open Access Journal of Forensic Psychology (2010)

Although research suggests that risk/needs assessment and intervention models may be effective in reducing recidivism,...



Criminal recidivism of female offenders: The importance of structured, community-based aftercare (with Kirk Heilbrun, Ralph Fretz, Jacey Erickson, Douglas Gerardi, and Catherine Halper), Corrections Compendium (2008)


Standards of practice and care in forensic mental health assessment: Legal, professional, and principles-based considerations (with Kirk Heilbrun, Geff Marczyk, and Alan Goldstein), Psychology, Public Policy, and Law (2008)