Photo of Samuel (Justin) J. Sinclair, PhD

Samuel (Justin) J. Sinclair, PhD

  • Director of Research, Psychological Evaluation and Research Laboratory (The PEaRL)


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Clinical Interests
  • Psychological, Cognitive and Personality Assessment
  • Violence and aggression
  • Psychometrics
Medical Education
  • PhD, Suffolk University
  • Fellowship, Massachusetts General Hospital
  • Boston: Massachusetts General Hospital
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • Centene/Celticare
  • Great-West Healthcare (formally One Health Plan)
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Medicaid
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Maine
  • OSW - New Hampshire
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Behavioral Health
  • United Behavioral Health - MGH
Patient Age Group

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Samuel Justin Sinclair, Ph.D. is Assistant Professor at Harvard Medical School, and Director of Research at the Massachusetts General Hospital's Psychological Evaluation and Research Laboratory (The PEaRL). His clinical and research interests are in psychological, cognitive and personality assessment; psychometrics and scale development/evaluation; and aggression and violence. He is co-Author of the forthcoming book, The Psychology of Terrorism Fears (Oxford University Press, in press) and co-Editor of the forthcoming volume, Contemporary Debates in Terrorism (Routledge Publishing, in press). He is also co-Editor of the book Interdisciplinary Analyses of Terrorism and Political Aggression (Cambridge Scholars Publishing, 2010), and co-Author of the book Creating Young Martyrs (Praeger Security International, 2008). Dr. Sinclair is Founder and Co-Editor-in-Chief of the peer-refereed journal Behavioral Sciences of Terrorism and Political Aggression, and has published numerous papers and books in the areas of terrorism, aggression, violence, psychological assessment, and psychometrics. He has contributed numerous papers to journals including Studies in Conflict and Terrorism; Journal of Psychopathology and Behavioral Assessment; Psychiatry Research; Traumatology; Journal of Aggression, Conflict, and Peace; Assessment; and the American Journal of Physical Medicine and Rehabilitation, among others. Dr. Sinclair is also the developer of the Terrorism Catastrophizing Scale (TCS), a psychological assessment tool measuring anticipatory fears about terrorism. He is past recipient of the Association for Threat Assessment Professionals' (ATAP) Dr. Chris Hatcher Memorial Scholarship Award (2007) for Excellence in Forensic Studies.

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One Bowdoin Square
7th Floor
Boston MA, 02114-2927
Phone: 617-643-4497617-724-5600
Psychiatry Department
55 Fruit Street
Boston MA, 02114-2696
Phone: 617-724-5600

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