Dr. Philip Firestone
Practice in Forensic Psychology
Professor of Psychology & Psychiatry University of Ottawa (1975- 2011) 
Tel: 613.852.1070  E-mail: 

Ph.D.: McGill University, Clinical Psychology  1974    
M.A.: Carleton University, Psychology 1971
Hon. B.A.: Carleton University, Psychology  1969


Professional, Training and Clinical Activities 
  Contract psychologist to the Provincial and Federal Correctional Services of Canada - assessment and  ongoing treatment programs for men on parole for violent and sexual offenses.
Private practice specializing in forensic psychology.
  Ontario Review Board - Psychologist Member 2003-2021. The Ontario Review Board annually reviews the status of every person who has been found to be not criminally responsible, or unfit to stand trial for criminal offences on account of a mental disorder.
 Workshops for police forces (e.g. Royal Canadian Mounted Police).
  Expert evidence in a wide variety of legal cases related to violent and and/or sexual offenses.  These have included long term offender, dangerous offender and homicide hearings.

Research Interests
The major research interest of our group has been the study of  individuals who have been convicted of violent and sexual offenses.  We have studied diagnostic and treatment issues, as well as factors related to recidivism in a wide array of violent offenders including homicidal sex offenders, rapists, incest offenders, child molesters and exhibitionists. 

Text Books
Abnormal Psychology: Perspectives (4th Ed. 2010)  Dozois, D. & Firestone, P., & Pearson Education Canada
Abnormal Psychology: Perspectives (3rd Ed. 2006) Firestone, P., & Dozois, D. Pearson Education Canada
Abnormal Psychology: Perspectives, (2nd Ed. 2003) Firestone, P., & Marshall, W. Pearson Education Canada.
Abnormal Psychology: Perspectives (1999). Marshall, W. & Firestone, P. Pearson Education Canada.

Recent Publications of Interest With Links to Full Text:
On line papers may not be exactly as published.  Please refer to published journal if quoting.

Bradford, John, M.W., Firestone, P., Ahmed, A.G., The Paraphilia Disorders and Psychopathy. International Handbook of Psychopathic Disorders, July 2020, John Wiley & Sons.
 Bradford, John, M.W. & Firestone, Philip & Ahmed, Adekunle & Felthous, Alan & S, Hanna. The Paraphilic Disorders and Psychopathy. CH 29 NOV. 2020, 671-691.
Kingston, D.A., Seto, M.C., Ahmed, A.G., Federoff, P., Firstone, P., & Bradford, J.M. (2012) The Role of Central and Peripheral Hormones in Sexual and Violent Recidivism in Sex Offenders. Journal of the American Academy of Psychiatry and the Law, 40:476-485.
Kingston, D. A., Yates, P.M., Firestone, P.  (2012) The Self-Regulation Model of Sexual Offending: Relationship to Risk and Need. Law and Human Behavior, 36, 3, 215-224.
Moulden, H.M., & Firestone, P. (2010) Therapist Awareness and Responsibility in Working With Sexual Offenders, 22, 374-386.
Moulden, H.M., Firestone, P., Kingston, D.A., & Wexler, A.F. (2010) A Description of Sexual Offending Committed by Canadian Teachers. Journal of Child Sexual Abuse, 19,4, 403-418.
Kingston, D.A., Seto, M.C., Firestone, P., & Bradford, J.M. (2010) Comparing Indicators of Sexual Sadism as Predictors of Recidivism Among Adult Male Sexual Offenders. Journal of Consulting and Clinical Psychology, 78, 4, 574-578.
Moulden, H.M., Firestone, P., Kingston, D.A., & Bradford, J.M. Recidivism in Pedophiles: An Investigation Using Different Diagnostic Methods. (2010) Journal of Forensic Psychiatry and Psychology, 20, 680-701.
Firestone, P., Moulden, H., Wexler, A.  (2009)Clerics who Commit Sexual Offenses: Offender, Offense, and Victim Characteristics. Journal of Child Sexual Abuse, Vol. 18, 4, 442-454.
Kingston, D.A., Firestone, P. (2009) Problematic Hypersexuality: A Review of Conceptualization and Diagnosis. Sexual Addiction and Compulsivity, 15,4, 284-310.
Kingston, D.A., Yates, P.Y., Firestone, P., Babchishin, K., & Bradford, J.M., (2008) Long-term Predictive Validity of the Risk Matrix: 2000: A Comparison with the Static-99 and the Sex Offender Risk Appraisal Guide. Sexual Abuse: A Journal of Research and Treatment, 20, 466-484.
Kingston, D.A., Firestone, P., Wexler, A., and Bradford, J.M. (2008) Factors Associated with Recidivism among Intra-familial Child Molesters. Journal of Sexual Aggression, 14,1, 13-18.
Kingston, D., Federoff, P., Firestone, P., Curry, S., & Bradford, J.M. (2008) Pornography Use and Sexual Aggression: The Impact of Frequency and Type of Pornography On Recidivism In Sexual Offenders. Aggressive Behavior, 34, 1-11.
Bradford, J.M., Federoff, P., & Firestone, P. Sexual Violence: A Review. (pgs 441-460) In Ed. Simon, R.I. & Tardiff, K. Textbook of Violence Assessment and Management. American Psychiatric Publishing Inc. Washington, D.C. 2008.
Bradford, J.M., Firestone, P., Ahmed, A.G.  The Paraphilias and Psychopathy (pgs. 275-290) .  In A.Felthous and G. Henning (Eds.)   The International Handbook of Psychopathic Disorders and the Law.  Chapter 16.  West Sussex, England.  John Wiley and Sons Ltd., 2007
Serran, G.S., Firestone,P., Marshall, W.L.and Moulden, H. (2007) Changes in Coping Following Treatment in Child Molesters. Journal of Interpersonal Violence, 22, 9, 1199-1210.
Kingston, A.D., Firestone, P., Moulden, H.M., & Bradford, J.M.  (2007) The Utility of the Diagnosis of Pedophilia: A Comparison of Various Pedophilic Classifications. Archives of Sexual Behaviour, 36;423-436.
Nunes, K.L., Hanson, K.R., Firestone, P., Moulden, H., Greenberg, D. , & Bradford, J.M. (2007) Denial Predicts Recidivism for Some Sexual Offenders. Sexual Abuse: A Journal of Reseearch and Treatment., 19, 2, 91-106.
Moulden, H., M., Firestone, P., and Wexler, A.F. (2007)Child Care Providers Who Commit Sexual Offenses:  A Description of Offender, Offence and Victim Characteristics.  International Journal of Offender Therapy & Comparative Criminology. 51,, 384-406.
Nunes, K. L., Firestone, P., Wexler, A. F., Jensen, T. L., & Bradford, J. M. (2007). Incarceration and recidivism among sexual offenders. Law and Human Behavior. 31, 305-318.
Nunes, K.L., Firestone, P., and Baldwin, M.W. (2007)Indirect Assessment of Cognitions of Child Molesters with the Implicit Association Test. Criminal Justice and Behavior. 34, 454-475.
Moulden, H.M., and Firestone, P. (2007) Vicarious Traumatization: The Impact On Therapists Who Work With Sexual Offenders. Trauma, Violence and Abuse. 8,1,  67-83.
Firestone, P.,Kingston, A.D., Wexler, A., and Bradford, J.M. Long Term Follow-up of Exhibitionists: Psychological, Phallometric, and Offence Characteristics.(2006) Journal of the American Academy of Psychiatry and the Law, 34, 349-359
Firestone, P., Dixon, K.L., Nunes, K.L., and Bradford, J.M. (2005)A Comparison of Incest Offenders Based on Victim Age. Journal of the American Academy of Psychiatry and the Law, Vol 33, 2, 223-232.
 Firestone, P.,  Nunes, K.L., Moulden, H., Broom, I., and  Bradford, J.M.   (2005) Hostility and Recidivism in Sexual Offenders.Archives of Sexual Behavior, Vol.34, No.3, 277-283.
Greenberg, D.M., Firestone, P., and Nunes, K.L. and Bradford, J.M.  Biological Fathers and Stepfathers Who Molest Their Daughters: Psychological, Phallometric and Criminal Features. (2005)  Sexual Abuse: A Journal of Research and Treatment, Vol. 17, 1, 39-46.
Serran, G., and Firestone, P. Intimate Partner Homicide: A Review of the Male Proprietariness and the Self-Defense Theories. (2004) Journal of  Aggression and Violent Behaviour, 9, 1-15.
Rabinowitz Greenberg, S.R., Firestone, P., Bradford, J.M., and Greenberg, D.M.
Prediction of Recidivism in Exhibitionists: Psychological, Phallometric, and Offence Factors. (2002) Sexual Abuse: A Journal of Research and Treatment, Vol. 14, 4, 329-347
 Nunes, K. Firestone, P. Bradford, J.M., Greenberg, D.M., Broom, I. A Comparison of the Static-99 and the Sex Offender Risk Appraisal Guide (SORAG). (2002), Sexual Abuse: A Journal of Research and Treatment, Vol. 14, 3, 249-265
  Greenberg, D.M., Bradford, J.M., Firestone, P. & Curry, S. Relationships of Child Molesters. A Study of victim Relationship with the Perpetrator.  (2000), Child Abuse and Neglect, 24, 11, 1485-1494.
  Firestone, P.Bradford,J.M., Greenberg, D.M. & Nunes, K.L
.  Differentiation of Homicicdal Child Molesters, Nonhomicidal Child Molesters, and Nonoffenders by Phallometry. (2000) Am J Psychiatry  157: 1847-1850.
Firestone, P.Bradford,J.M., Greenberg, D.M. S., & Serran, G.A.  The Relationship of Deviant Sexual Arousal and Psychopathy in Incest Offenders, Extrafamilial Child  Molesters and Rapists. (2000)  Journal of the American Academy of Psychiatry and the Law, 28,303-308.   
Firestone, P., Bradford, J., McCoy, M., Greenberg, D.M., Larose, M.R., Curry, S. Prediction of Recidivism in Court Referred Child Molesters. (2000) Sexual Abuse: A Journal of Research and Treatment, 12, 3, 203-222.  
Greenberg, D.M.,  Firestone, P. Bradford,J.M., Broom, I.(2000) Infantophiles. In Schlesinger, L.B., Serial Offenders: Current Thought, Recent Findings, Unusual Syndromes. Pgs. 229-246. CRC Press, LLC, N.Y
Firestone, P., Bradford, J.M., Greenberg, D.M., McCoy, M., Larose, M.R., Curry, S.
 Prediction of Recidivism in Incest Offenders. (1999) Journal of Interpersonal Violence, Vol. 14, No. 5, 511-531.   
Firestone, P., Bradford, J.M., Greenberg, D.M., Larose, M.R. Homicidal Sex Offenders: Psychological, Phallometric and Diagnostic Features. (1998) J. American Academy Psychiatry and Law, Vol 26, No.4, 537-552  
Firestone, P., Bradford, J.M., Greenberg, D.M., Larose, M.R., Curry, S., Homicidal and Non-Homicidal Child Molesters: Psychological, Phallometric and Criminal Features. (1998) Sexual Abuse: A Journal of Research and Treatment, 10, 4, 305 B323.  
Firestone, P., Bradford, J.M., McCoy, M., Greenberg, D.M., Larose, M.R., Curry, S. Recidivism Factors in Convicted Rapists.  (1998) J. American Academy Psychiatry and Law, 26, 2, 185-200.  
Manion, I., Firestone, P., Cloutier, P., Ligezinska, M., McIntyre, J., & Ensom, R. Extrafamilial Child Sexual Abuse: Predicting Parent and Child Functioning. (1998) Child Abuse and Neglect, Vol. 22, 12, 1285-1304.  
Manion, I.G., McIntyre, J., Firestone, P., Ligeinska, M., Ensom, R., & Wells, G.  Secondary traumatization in parents following the disclosure of extrafamilial child sexual abuse: Initial effects. (1996). Journal of Child Abuse & Neglect20, (11), 1095-1109.
Ligezinska, M. & Firestone, P., Manion, I., McIntyre, J., Ensom, R., & Wells, G.  (1996).  Children's emotional and behavioral functioning following the disclosure of extrafamilial sexual abuse.  Journal of Child Abuse & Neglect20, (2) 111-125

Publications ADHD
Firestone, P., Monteiro Musten, L., Pisterman,S., Mercer, J., Bennett, S., Short-term side effects of stimulant medication are increased with Attention-Deficit/Hyperactivity Disorder:  A double-blind placebo-controlled study (1998) Journal of Child and Adolescent Psychopharmacology, 8,(1), 13-25.
Monteiro-MustenFirstone, P., Pisterman, S., Bennet, S. and Mercer, J.  The effects of stimulant medication on pre-school ADHD children: Behavioural and cognitive factors. (1997)  J.of Am. Acad. Ch. & AdolPsychiat., 36,(10),1407-1415.
Claude, D., and Firestone, P.   (1995).  The development of hyperactive boys: A 12-year follow-up.  Canadian Journal of Behavioural Sciences.  Canadian Journal of Behavioural Science, 27, 2, 226-249.
Pisterman, S., Firestone, P., McGrath, P., Goodman, J.T., Webster, I., Mallory, R., & Goffin, B.  (1992).  The Role of Parent Training in the Treatment of Preschoolers with Attention Deficit Disorder with Hyperactivity.  American Journal of Orthopsychiatry62 (3), 397‑408.
Pisterman, S., Firestone, P. McGrath, Goodman, J.T., Webster, I., Mallory, R. (1992).  The Effects of Parent Training on Parenting Stress and Sense of Competence.  Canadian Journal of Behavioral Sciences24(1), 41‑58.
Bisnaire, L., Firestone, P., Rynard, D.  (1990).  Factors Associated with Academic Achievement in Children Following Parental Separation.  American Journal of Orthopsychiatry60(1), 67-76.
Pisterman, S., McGrath, P., Firestone, P., Goodman, J.T., Webster, I., Mallory, R. (1989).  Outcome of Parent-Mediated Treatment of Preschoolers with Attention Deficit Disorder with Hyperactivity.  Journal of Consulting and Clinical Psychology57, 628‑635
Pressman, E., Roche, D., Davey, J., & Firestone, P.  (1986).  Patterns of auditory perception skills in children with learning disabilities:  A computer‑assisted approach.  Journal of Learning Disabilities19 (8), 485‑488.
Alberts‑Corush, J., Firestone, P. & Goodman, J.T.  (1986).  Attention and impulsivity characteristics of the biological and adoptive parents of hyperactive and normal control children.  American Journal of Orthopsychiatry56 (3), 413‑423.
Firestone, P., Crowe, D., Goodman, J.T. & McGrath, P.  (1986).  Vicissitudes of follow‑up studies:  Differential effects of parent training and stimulant medication with hyperactives.  American Journal of Orthopsychiatry56 (2),  184‑194.
Butter HJ. Lapierre Y. Firestone P. Blank A. (1984) Efficacy of ACTH 4-9 analog, methylphenidate, and placebo on attention deficit disorder with hyperkinesis. Progress in Neuro-Psychopharmacology & Biological Psychiatry. 8(4-6):661-4, 1984
Butter, H.J., Lapierre, Y‑D., Firestone, P., & Blank, A.  (1983).  A comparative study of the efficacy of ACTH 4‑9:  Analog methylphenidate and placebo on attention deficit disorder with hyperkinesis.  Journal of Clinical Psychopharmacology3 (4).
Firestone, P., & Peters, S.  (1983).  Minor physical anomalies and behavior in children:  A Review.  Journal of Autism and Development Disorders13, 411‑425.
Firestone, P. & Prabhu, A.  (1983).  Minor physical anomalies and obstretical complications.  Their relationship to hyperactive, psychoneurotic and normal children and their families.  Journal of Abnormal Child Psychology11 (2), 207‑216.
Firestone, P.  (1982).  Factors associated with children's adherence to stimulant medication.  American Journal of Orthopsychiatry52 (3), 447‑457.
Firestone, P., & Witt, J.E.  (1982).  Characteristics of families completing and prematurely discontinuing a behavioral parent‑training program.  Journal of Pediatric Psychology,  7 (2), 209‑222.
Busby, K., Firestone, P., & Pivik, T.  (1981).  Sleep patterns in hyperkinetic and normal children.  Sleep4 (4), 366‑383.
Firestone, P., Kelly, J.J., Goodman, J.T., & Davey, J.  (1981).  Differential effects of parent training and stimulant medication with hyperactives:  A progress report.  The Journal of the American Academy of Child Psychiatry20, 135‑147.
Firestone, P., Kelly, M., & Fike, S.  (1980).  Are fathers necessary in parent‑training groups?  Journal of Clinical Child Psychology9 (1), 44‑47.
Firestone, P., & Backman, J.  (1979).  A review of pharmacological and behavioral approaches to the treatment of hyperactive children.  American Journal of Orthopsychiatry49, 500‑504.
Firestone, P., & Martin, J.E.  (1979).  An analysis of the hyperactive syndrome.  A comparison of hyperactive, behavior problem, asthmatic and normal children.  Journal of Abnormal Child Psychology7 (3), 216‑273.
Firestone, P., Davey, J., Goodman, J.T., & Peters, S.  (1978).  The effects of caffeine and methylphenidate on hyperactive children.  Journal of the American Academy of Child Psychiatry7, 445‑446.  Also in Pediatric Digest, 1979.
Firestone, P., Goodman, J.T., & Watters, B.  (1978).  Systematic desensitization and its components in childhood disorders:  A review.  Journal of Clinical Child Psychology7, 142‑148.
Firestone, P., Peters, S., Riviers, M., & Knights, B.  (1978).  Physical anomalies in hyperactives, retardates and normals, their parents and siblings.  Journal of Child Psychology ad Psychiatry19, 155‑161.
Firestone, P., Poitras‑Wright, H., & Douglas, V.I.  (1978).  The effects of caffeine on hyperactive children.  Journal of Learning Disabilities11 (3), 20‑28.  Also in Modern Medicine, 1979.
Firestone, P.  (1977).  The effects of verbal and material rewards and punishers on the performance of impulsive and reflective children.  The Child Study Journal7, 17‑18.
Firestone, P.  (1976).  The effects and side effects of time‑out on an aggressive nursery school child.  Journal of Behavior Therapy and Experimental Psychiatry21, 23‑26.
Firestone, P., Lewy, F., & Douglas, V.I.  (1976).  Hyperactivity and physical anomalies.  Psychiatry Digest, September, 25‑26.
Firestone, P., Lewy, F., & Douglas, V.I.  (1976).  Hyperactive children and physical anomalies.  Canadian Journal of Psychiatry2, 23‑26.
  Firestone, P.  (1975).  Recent trends in autism theory.  Ontario Child Care Work Association Journal, July.
Firestone, P., & Douglas, V.I.  (1975).  The effects of reward and punishment on reaction times and autonomic activity in hyperactive and normal children.  Journal of Abnormal Child Psychology3, 201‑216.

Publications Behavioural Medicine
Firestone, P., McGrath, P., & Feldman, W. (1984).  Advances in Behavioral Medicine for Children and Adolescents.  Lawrence Erlbaum Associates Inc., Publishers.
McGrath, P., & Firestone, P. (Eds.) (1983).  Pediatric and Adolescent Behavioral Medicine: Issues in Treatment.  New York:  Springer Publishing Company.
MCGrath, P.J., Humphreys, P., Keene, D., Goodman, J.T., Lascelles, M.A., Cunnigham, J., Firestone, P.  (1992).  The Efficacy and Efficiency of a Self Administered Treatment for Adolescent Migrain.  Pain, (2), 1-4.
Leikin, L., Firestone, P., McGrath, P. & Bernard, P.  Self-report measurement of children's post-surgical symptoms.  Psychosomatic Medicine, 1990, 51, 254-255.
Guibert, M.B., Firestone, P., McGrath, P., Goodman, J.T., Cunningham, J.S.  (1990).  Compliance Factors in the Behavioral Treatment of Headache in Children and Adolescents.  Canadian Journal of Behavioral Science22(1), 37‑44.
McGrath, P.J., Humphreys, P., Goodman, J.T., Keene, D., Firestone, P., Jacob, P. & Cunningham, S.J. (1988). Relaxation prophylaxis of childhood migraine:  A randomized placebo‑controlled trial.  Developmental Medicine and Child Neurology30, 626‑631.
Leikin, L., Firestone, P., McGrath, P.J.  (1988).  Physical symptom reporting in Type A & B children.  Journal of Consulting and Clinical Psychology56, 721‑726.
Leikin, L., Firestone, P., McGrath, P.J.  (1988).  Children's physical symptom reporting and parental Type A behaviors. (Abstract).  Canadian Psychology29, 401.
 Cunningham, S.J., McGrath, P.J., Ferguson, H.B., Humphreys, P., D'Astous, J.D., Latter, J., Goodman, J.T., & Firestone, P.  (1987).  Personality and behavioural characteristics in pediatric migraine.  Headache27, 16‑20.
Richter, I.L., McGrath, P.J., Humphreys, P.J., Goodman, J.T., Firestone, P., & Keene, D. (1986).  Cognitive and relaxation treatment of pediatric migraine.  Pain25, 195‑203.
Fradkin, B., & Firestone, P.  (1986).  Premenstrual Tension, Expectancy, and Mother‑Child Relations.  Journal of Behavioral Medicine9 (3), 245‑259.
McGrath, P., Goodman, J.T., Firestone, P., Shipman, R., & Peters, S.  (1983).  Recurrent abdominal pain:  A psychogenic disorder?  Archives of Disease of Childhood,  58 (11), 888‑890.
Rose, M., Firestone, P., Heick, H.M.C., & Faught, A.K.  (1983).  The effects of anxiety management training on the control of juvenile diabetes mellitus.  Journal of Behavioral Medicine6 (4).