908.333.4646 x 106

Dr. Philip Witt specializes in forensic psychology -- that is, psychology as applied to legal cases. For many years, he was a managing partner at Associates in Psychological Services, P.A., and he currently conducts his forensic psychology practice through Somerset Psychological Group, P.A. He is board certified in forensic psychology by the American Board of Forensic Psychology, where he previously served on the examination panel. He performs forensic evaluations, testimony, and consultation in a wide range of civil and criminal areas, particularly sex offender assessment. He serves on the clinical faculty of Rutgers Medical School. A past president of the New Jersey Psychological Association, he was the 2001 recipient of that organization's Psychologist of the Year award. He is on the editorial board of the Open Access Journal of Forensic Psychology. He is Past President of the American Academy of Forensic Psychology. When not practicing forensic psychology, he is an avid bicyclist, nature photographer, and birder.

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  • Ph.D. - St. Louis University, July 1976 (Clinical Psychology - APA approved)
  • M.S. - St. Louis University, January 1975 (Psychology)
  • A.B. - Rutgers University, June 1971 (Psychology)


  • New Jersey Licensed Psychologist (#1305).
  • Diplomate in Forensic Psychology of the American Board of Professional Psychology.


Staff Positions:

  • 2019 – Present: Private practice, Somerset Psychological Group, P.A., Somerville, NJ
    Private practice of forensic psychology.
  • 1987- 2018 Private practice, Associates in Psychological Services, P.A., Somerville, NJ.
    Private practice of clinical and forensic psychology.
  • 1976 -1984, 1986-1987 Psychologist, Adult Diagnostic and Treatment Center, Avenel, NJ.
    Clinical and administrative roles—including Director of Research (1983-1984) and Director of Psychology (1978-1983)—in NJ’s correctional facility for sex offenders.

Academic Appointments:

  • 1983 - 1985, 1991- present
    Clinical Faculty, Department of Psychiatry, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ.
    - Research collaboration, supervision, and training.
    - (1994 - Volunteer Faculty Service Award)
    - (1995 - present: Volunteer Faculty Appointments and Promotions Committee
    - (1983 - 1985, 1991 - 2001: Clinical Assistant Professor)
    - (2001 - present: Clinical Associate Professor)
  • 1993 - 2002
    Visiting Lecturer, Graduate School of Applied and Professional Psychology, Rutgers University
    Instructor in graduate level objective personality assessment course.
  • 1976 - 1980
    Adjunct Instructor, School Psychology Program, Seton Hall University, South Orange, NJ.
    Graduate level clinical course instructor: Intelligence Testing, Projective Testing, Rorschach, Psychopathology, Personality Theory.

Consultation Positions:

  • 1995 – 1996, 2005-2006
    Task Force Member, NJ Attorney General’s sex offender risk assessment task force
    Member of task force that developed Registrant Risk Assessment Scale (RRAS) and Juvenile Risk Assessment Scale (JRAS) to place adult and juvenile sex offenders in risk tiers in accord with Megan’s Law.
  • 1999
    Consultant, Seton Hall University Law School Institute of Mental Health and Law
    Assisted in writing report to NJ legislature regarding treatment standards for sexually violent predators.
  • 1991 - 1996
    Consultant, Psychology Dept., Veterans Administration Hospital, Lyons, NJ.
    Consultation and training of psychology staff.

Journal Affiliations:

  • 2009-2014
    Associate Editor, Open Access Journal of Forensic Psychology
  • 1997- 2009
    Editorial Affiliation, Journal of Psychiatry and Law
    - 1997 – 2006: Book review editor
    - 2006 – 2009: Editor-in chief
  • 1991
    Journal Referee, Criminal Justice and Behavior
    Review manuscripts regarding suitability for publication in journal.


Witt, P.H., & DeMatteo, D. (submitted, under review). Sexually Violent Predator laws: Historical development and evolution. In W. T. O’Donohue & D. Bromberg (Eds.), Sexually violent predators: A clinical science handbook. New York, NY: Springer Publishing Co.

Witt, P.H., Hiscox, S. P., and Frank, M. (2019). A contrarian approach to structured professional judgment scales. Sex Offender Law Report, 20, pp. 17-18. 22-25.

Witt, P. H. & Yeoman, Z. (2018). Denial among sex offenders: Does it make a difference? Sex Offender Law Report, 19(6), pp. 81-82, 92-94.

Witt, P. H., Nettl, P., & Hiscox, S. P. (2018). Release from Megan’s Law: Legal and clinical considerations. Sex Offender Law Report, 19(5), pp. 65-66, 71-75, 79.

Witt, P.H., & Neller, D. J. (2018). Detecting deception in sex offenders. In R. Rogers & S. Bender (Eds.). Clinical assessment of malingering and deception (4th edition) (pp. 401-421). New York, NY: Guilford.

Breiner, M. J., & Witt, P. H. (2018). Sex offender risk assessment: Merits of Risk-Need-Responsivity model of risk assessment, Part 2. Sex Offender Law Report, 19, pp. 33-34, 43-45.

Breiner, M. J., & Witt, P. H. (2018). Sex offender risk assessment: A decade of development, Part 1. Sex Offender Law Report, 19, pp. 17-18, 26-28.


  • American Psychological Association
    Member - Committee on Professional Practice and Standards (1993-1995, 20002002) (Chair - 1995)
  • New Jersey Psychological Association
    President (1994)
    Co-chair, Committee on Business Practices (1996-2000)
    Member-at-large, Executive Board (1991-1992)
    Co-chair, Forensic Psychology Committee (1990-1992)
    Member, Ethics Committee (1978-1984, 1996-2002)
    Psychologist of the Year (2001)
  • American Psychology-Law Society
  • American Academy of Forensic Psychologists
    Secretary (2005-2006)
    President Elect (2007-2008)
    President (2009-2010)
  • American Board of Forensic Psychology
    Member of examination faculty (2005-2015)
  • Association for the Treatment of Sexual Abusers (National and New Jersey Chapters)
    ATSA Fellow - 2017
    President of NJ Chapter (2001 – 2003)