Taxonomic Discrimination Among Sex Offenders: Forensic Utility?

  • Raina V. Lamade
  • Robert A. PrentkyEmail author


Sexual offenders are a markedly heterogeneous group of individuals. The chapter provides a historic overview of rational and empirically derived taxonomic classification systems of sexual offenders, as well as their potential utility and limitations. Various taxonomic classification systems for contact offenders, child pornography, and Internet offenders are presented. This chapter includes a brief discussion of relevant laws. Related crossover effects and “black swan” perpetrators will be discussed. Implications for future research and directions using taxonomic approaches will be discussed.


Taxonomy Typologies Rationally derived classification Empirically derived classification Crossover effects 


  1. Abel, G. G., Becker, J. V., Cunningham-Rathner, J., Mittelman, M. S., & Rouleau, J. L. (1988). Multiple paraphilic diagnoses among sex offenders. Bulletin of the American Academy of Psychiatry and the Law, 16, 153–168.PubMedGoogle Scholar
  2. Adam Walsh Child protection and Safety Act of 2006, Pub. L. No. 109-248, 120 Stat.587 (codified at 18 and 42 U.S.C.).Google Scholar
  3. Allan, M., Grace, R. C., Rutherford, B., & Hudson, S. M. (2007). Psychometric assessment of dynamic risk factors for child molesters. Sexual Abuse: A Journal of Research and Treatment, 19(4), 347–367. Scholar
  4. American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Washington, D.C.: American Psychiatric Association.CrossRefGoogle Scholar
  5. Amir, M. (1971). Patterns in forcible rape. Chicago: University of Chicago Press.Google Scholar
  6. Babchishin, K. M., Hanson, R. K., & Hermann, C. A. (2011). The characteristics of online sex offenders: A meta-analysis. Sexual Abuse, 23(1), 92–123. Scholar
  7. Bard, L. A., Carter, D. L., Cerce, D. D., Knight, R. A., Rosenberg, R., & Schneider, B. (1987). A descriptive study of rapists and child molesters: Developmental, clinical and criminal characteristics. Behavioral Sciences & the Law, 5(2), 203–220.CrossRefGoogle Scholar
  8. Blasko, B. L. (2016). Chapter 2: Overview of sexual offender typologies, recidivism, and treatment. In E. L. Jeglic & C. Calkins (Eds.), Sexual violence. Evidence based policy and prevention. New York: Springer.Google Scholar
  9. Briggs, P., Simon, W. T., & Simonsen, S. (2011). An exploratory study of internet-initiated sexual offenses and the chat room sex offender: Has the internet enabled a new typology of sex offender? Sexual Abuse: A Journal of Research and Treatment, 23(1), 72–91. Scholar
  10. Bumby, K. M., & Hansen, D. J. (1997). Intimacy deficits, fear of intimacy, and loneliness among sexual offenders. Criminal Justice and Behavior, 24, 315–331.CrossRefGoogle Scholar
  11. Burgess, A. W., Mahoney, M., Visk, J., & Morgenbesser, L. (2008). Cyber child sexual exploitation. Journal of Psychosocial Nursing and Mental Health Services, 46(9), 38–45. Scholar
  12. Cohen, M. L., Seghorn, T., & Calmas, W. (1969). Sociometric study of the sex offender. Journal of Abnormal Psychology, 74(2), 249–255.Google Scholar
  13. Cohen, M. L., Garofalo, R. F., Boucher, R., & Seghorn, T. (1971). The psychology of rapists. Seminars in Psychiatry, 3, 307–327.Google Scholar
  14. Cohen, B. H., Boucher, R. J., Seghorn, T. K., & Mehegan, J. (1979, March). The sexual offender against children. Paper presented at the Presented at a meeting of the Association for Professional Treatment of Offenders. Boston.Google Scholar
  15. Cortoni, F., & Marshall, W. L. (2001). Sex as a coping strategy and its relationship to juvenile sexual history and intimacy in sexual offenders. Sexual Abuse: A Journal of Research and Treatment, 13(1), 27–43. Scholar
  16. Craig, L. A., Browne, K. D., Beech, A., & Stringer, I. (2006). Psychosexual characteristics of sexual offenders and the relationship to sexual reconviction. Psychology, Crime & Law, 12(3), 231–243.CrossRefGoogle Scholar
  17. DeClue, G. (2009). Should hebephilia be a mental disorder: A reply to Blanchard et al. (2008). Archives of Sexual Behavior, 38, 317–318. author reply 331–4.PubMedCrossRefGoogle Scholar
  18. Dietz, P. E. (1983). Sex offenses: Behavioral aspects. In S. H. Kadish et al. (Eds.), Encyclopedia of crime and justice. New York: Free Press.Google Scholar
  19. Durham, M. G. (2009). The Lolita effect: The media sexualization of young girls and five keys to fixing it. New York: The Overlook Press, Peter Mayer Publishers.Google Scholar
  20. Eke, A. W., Seto, M. C., & Williams, J. (2011). Examining the criminal history and future offending of child pornography offenders: An extended prospective follow-up study. Law and Human Behavior, 35(6), 466–478. Scholar
  21. Elliott, I. A., Beech, A. R., Mandeville-Norden, R., & Hayes, E. (2009). Psychological profiles of internet sexual offenders: Comparisons with contact sexual offenders. Sexual Abuse: A Journal of Research and Treatment, 21(1), 76–92. Scholar
  22. English, K., Jones, L., Patrick, D., & Pasini-Hill, D. (2003). Sexual offender containment: Use of the postconviction polygraph. Annals of the New York Academy of Sciences, 989, 411–427.PubMedCrossRefGoogle Scholar
  23. Fabian, J. M. (2011). Diagnosing and litigating hebephilia in sexually vio-lent predator civil commitment proceedings. The Journal of the American Academy of Psychiatry and the Law, 39, 496–505.PubMedGoogle Scholar
  24. Finkelhor, D. (1984). Child sexual abuse: New theory and research. New York: Free Press.Google Scholar
  25. First, M. B., & Halon, R. L. (2008). Use of DSM paraphilia diagnoses in sexually violent predator commitment cases. The Journal of the American Academy of Psychiatry and the Law, 36, 443–454.PubMedGoogle Scholar
  26. Fitch, J. H. (1962). Men convicted of sexual offences against children: A descriptive follow-up study. British Journal of Criminology, 3(1), 18–37.CrossRefGoogle Scholar
  27. Frances, A., & First, M. B. (2011). Hebephilia is not a mental disorder in DSM-IV-TR and should not become one in DSM-5. Journal Amican Academy of Psy-chiatry and the Law, 39, 78–85.Google Scholar
  28. Franklin, K. (2009). The public policy implications of “Hebephilia”: A response to Blanchard et al. (2008). Archives of Sexual Behavior, 38, 319–320, author reply 331–4.PubMedCrossRefGoogle Scholar
  29. Franklin, K. (2010). Hebephilia: Quintessence of diagnostic pretextuality. Behavioral Sciences & the Law, 28, 751–768.CrossRefGoogle Scholar
  30. Gannon, T. A., & Ward, T. (2008). Rape: Psychopathology and theory. In D. R. Laws & W. O’Donohue (Eds.), Sexual deviance: Theory, assessment, and treatment (Vol. 2, pp. 336–355). New York: Guilford Press.Google Scholar
  31. Gebhard, P. H., Gagnon, J. H., Pomeroy, W. B., & Christenson, C. V. (1965). Sex offenders: An analysis of types. New York: Harper & Row.Google Scholar
  32. Gookin, K. (2007, August). Comparison of state laws authorizing involuntary commitment of sexually violent predators: 2006 update, revised. Washington State Institute for Public Policy, Document No. 07-08-1101.
  33. Green, R. (2010). Sexual preference for 14-year-olds as a mental disorder: You can’t be serious!! Archives of Sexual Behavior, 39, 585–586.PubMedCrossRefGoogle Scholar
  34. Groth, A. N. (1981). Sexual offenders against children. Webster, MA: Distributed by Forensic Mental Health Associates.Google Scholar
  35. Groth, A. N., & Birnbaum, H. J. (1978). Adult sexual orientation and attraction to underage persons. Archives of Sexual Behavior, 7(3), 175–181.PubMedCrossRefGoogle Scholar
  36. Groth, A. N., & Birnbaum, H. J. (1979). Men who rape. New York: Plenum.CrossRefGoogle Scholar
  37. Groth, A. N., Burgess, A. W., & Holmstrom, L. L. (1977). Rape: Power, anger, and sexuality. American Journal of Psychiatry, 134, 1239–1243.PubMedCrossRefGoogle Scholar
  38. Groth, A. N., Hobson, W. F., & Gary, T. S. (1982). The child molester: Clinical observations. Journal of Social Work and Human Sexuality, 1, 129–144.CrossRefGoogle Scholar
  39. Hall, R. C. W., & Hall, R. C. W. (2007). A profile of pedophilia: Definition, characteristics of offenders, recidivism, treatment outcomes, and forensic issues. Mayo Clinic Proceedings, 82(4), 457–471.PubMedCrossRefGoogle Scholar
  40. Hanson, R. K., & Bussière, M. T. (1998). Predicting relapse: A meta-analysis of sexual offender recidivism studies. Journal of Consulting and Clinical Psychology, 66(2), 348–362.PubMedCrossRefGoogle Scholar
  41. Hanson, R. K., & Morton-Bourgon, K. E. (2005). The characteristics of persistent sexual offenders: A meta-analysis of recidivism studies. Journal of Consulting and Clinical Psychology, 73(6), 1154–1163.PubMedCrossRefGoogle Scholar
  42. Hartman, C. R., Burgess, A. W., & Lanning, K. V. (1984). Typology of collectors. In A. W. Burgess & M. L. Clark (Eds.), Child pornography and sex rings (pp. 93–109). Toronto, ON: Lexington Books.Google Scholar
  43. Heil, P., Ahlmeyer, S., & Simons, D. (2003). Crossover sexual offenses. Sexual Abuse: A Journal of Research and Treatment, 15, 221–236.CrossRefGoogle Scholar
  44. Henry, O., Mandeville-Norden, R., Hayes, E., & Egan, V. (2010). Do internet-based sexual offenders reduce to normal, inadequate and deviant groups? Journal of Sexual Aggression, 16(1), 33–46. Scholar
  45. Howitt, D., & Sheldon, K. (2007). The role of cognitive distortions in paedophilic offending: Internet and contact offenders compared. Psychology, Crime & Law, 13(5), 469–486.CrossRefGoogle Scholar
  46. Hundersmarck, S., Durkin, K., & Delong, R. L. (2007). Designing a classification system for Internet offenders: Doing cognitive distortions. In D. W. Phillips III (Ed.), Mental health issues in the criminal justice system (pp. 257–273). London: The Haworth Press.Google Scholar
  47. Imhoff, R., Banse, R., & Schmidt, A. F. (2017). Toward a theoretical understanding of sexual orientation and sexual motivation. Archives of Sexual Behavior, 46(1), 29–33. Scholar
  48. Jacob Wetterling Crimes against Children and Sexually Violent Offender Registration Act of 1994, Pub. L. No. 103-322, § 170101, 42 U.S.C. § 14071. (1994).Google Scholar
  49. Janssen, D. F. (2017). John Money’s “Chronophilia”: Untimely sex between Philias and Phylisms. Sexual Offender Treatment, 12(1), 1–17.Google Scholar
  50. Knight, R. A., & Prentky, R. A. (1990). Classifying sexual offenders: The development and corroboration of taxonomic models. In W. L. Marshall, D. R. Laws, & H. E. Barbaree (Eds.), Handbook of sexual assault: Issues, theories, and treatment of the offender (pp. 23–52). New York: Plenum Press.CrossRefGoogle Scholar
  51. Knight, R. A., Rosenberg, R., & Schneider, B. (1985). Classification of sexual offenders: Perspectives, methods and validation. In A. Burgess (Ed.), Rape and sexual assault: A research handbook (pp. 222–293). New York: Garland Publishing.Google Scholar
  52. Knight, R. A., Carter, D. L., & Prentky, R. A. (1989). A system for the classification of child molesters: Reliability and application. Journal of Interpersonal Violence, 4(1), 3–23.CrossRefGoogle Scholar
  53. Krone, T. (2004). A typology of online child pornography offending. Trends & Issues in Criminal Justice., 279, 1–6.Google Scholar
  54. Lamade, R. V. McGrath, R., & Prentky, R. (2014). Development of subtypes of internet and contact sexual offenders who perpetrate against children. Unpublished Disseration.Google Scholar
  55. Lancaster, R. N. (2011). Sex panic and the punitive state. Berkeley, CA: University of California Press.CrossRefGoogle Scholar
  56. Långström, N., Sjöstedt, G., & Grann, M. (2004). Psychiatric disorders and recidivism in sexual offenders. Sex Abuse, 16(2), 139–150. Scholar
  57. Lanning, K. V. (1986). Child molesters: A behavioral analysis for professionals investigating the sexual exploitation of children. Alexandria, VA: The National Center for Missing and Exploited Children.Google Scholar
  58. Lanning, K. V. (2010). Child molesters: A behavioral analysis for professionals investigating the sexual exploitation of children (5th ed.). Alexandria, VA: The National Center for Missing and Exploited Children.Google Scholar
  59. Lee, A. F. S., Li, N.-C., Lamade, R., Schuler, A., & Prentky, R. A. (2012). Predicting hands-on child sexual offenses among possessors of Internet child pornography. Psychology, Public Policy, and Law, 18(4), 644–672. Scholar
  60. Magaletta, P. R., Faust, E., Bickart, W., & McLearen, A. M. (2014). Exploring clinical and personality characteristics of adult male Internet-only child pornography offenders. International Journal of Offender Therapy and Comparative Criminology, 58(2), 137–153.PubMedCrossRefGoogle Scholar
  61. Malamuth, N. (1998). The confluence model as an organizing framework for research on sexually aggressive men: Risk moderators, imagined aggression and pornography consumption. In R. Geen & E. Donnerstein (Eds.), Aggression: Theoretical and empirical reviews (pp. 229–245). New York: Academic.Google Scholar
  62. Malamuth, N. (2003). Risk Assessment: Discussion of the section understanding and managing sexually coercive behavior. Annals of the New York Academy of Sciences, 989, 236–238.Google Scholar
  63. Mann, R. E., Hanson, R. K., & Thornton, D. (2010). Assessing risk for sexual recidivism: Some proposals on the nature of psychologically meaningful risk factors. Sex Abuse, 22, 191–217. Scholar
  64. Marshall, W. L. (1989). Intimacy, loneliness and sexual offenders. Behaviour Research and Therapy, 27(5), 491–503.PubMedCrossRefGoogle Scholar
  65. McCaghy II, C. (1967). Child molesters: A study of their careers as deviants. New York: Holt, Rinehart & Winston.Google Scholar
  66. McCarthy, J. A. (2010). Internet sexual activity: A comparison between contact and non-contact child pornography offenders. Journal of Sexual Aggression, 16(2), 181–195. Scholar
  67. McLaughlin, J. F. (2000). Cyber child sex offender typology. Knight Stick: Publication of the New Hampshire Police Association, 55, 39–42. Retrieved from Scholar
  68. Megan’s Law, Pub. L. No. 104-145, 110 Stat. 1345, 42 U.S.C. 14071. (1996).Google Scholar
  69. O’Connor, C. (2005). Child pornography and the Internet – a statistical review. Australian Police Journal, 59, 190–199.Google Scholar
  70. Osborn, J., Elliott, I. A., Middleton, D., & Beech, A. R. (2010). The use of actuarial risk assessment measures with UK internet child pornography offenders. Journal of Aggression, Conflict and Peace Research, 2(3), 16–24.CrossRefGoogle Scholar
  71. Pam Lyncher Sexual Offender Tracking and Identification Act of 1996, Pub. L. No. 104-236, § 2(a), 42 U.S.C. § 14072. (1996).Google Scholar
  72. Prentky, R. A. (1999). Child sexual molestation. In V. B. Van Hasselt & M. Hersen (Eds.), Handbook of psychological approaches with violent offenders (pp. 267–300). New York: Kluwer Academic/Plenum Publishers.CrossRefGoogle Scholar
  73. Prentky, R. A., & Barbaree, H. E. (2011). Commentary: Hebephilia – A would-be paraphilia caught in the twilight zone between prepubescence and adulthood. The Journal of the American Academy of Psychiatry and the Law, 39(4), 506–510.PubMedGoogle Scholar
  74. Prentky, R. A., Cohen, M. L., & Seghorn, T. K. (1985). Development of a rational taxonomy for the classification of sexual offenders: Rapists. Bulletin of the American Academy of Psychiatry and the Law, 13, 39–70.PubMedGoogle Scholar
  75. Prentky, R. A., Knight, R. A., & Rosenberg, R. (1988). Validation analyses on the MTC taxonomy for rapists: Disconfirmation and reconceptualization. In R. A. Prentky & V. Quinsey (Eds.), Human sexual aggression: Current perspectives (Vol. 528, pp. 21–40). New York: The New York Academy of Sciences.Google Scholar
  76. Prentky, R. A., Coward, A., & Gabriel, A. (2008). Muddy diagnostic waters in the SVP courtroom: A reply to First & Halon. The Journal of the American Academy of Psychiatry and the Law, 36(4), 455–458.PubMedGoogle Scholar
  77. Prentky, R., Gabriel, A., Coward, A. (2010). Sexual offenders. J. Thomas M. Hersen, Handbook of clinical psychology competencies (1063–1094): Springer New York.CrossRefGoogle Scholar
  78. Prentky, R. A., Lamade, R., & Coward, A. (2011). Sex offender research in a forensic context. Invited Chapter, In B. Rosenfeld & S. Penrod (Eds.), Research methods in forensic psychology (pp. 372–399). New York: John Wiley.Google Scholar
  79. Prentky, R. A., Knight, R. A., Rosenberg, R., & Lee, A. (1989). A path analytic approach to the validation of a taxonomic system (or classifying child molesters). Journal of Quantitative Criminology, 5, 231–257.CrossRefGoogle Scholar
  80. Quinsey, V. L., Rice, M. E., & Harris, G. T. (1995). Actuarial prediction of sexual recidivism. Journal of Interpersonal Violence, 10(1), 85–105.CrossRefGoogle Scholar
  81. Raymond, N. C., Coleman, E., Ohlerking, F., Christenson, G. A., & Miner, M. (1999). Psychiatric comorbidity in pedophilic sex offenders. The American Journal of Psychiatry, 156(5), 786–788.PubMedGoogle Scholar
  82. Reijnen, L., Bulten, E., & Nijman, H. (2009). Demographic and personality characteristics of internet child pornography downloaders in comparison to other offenders. Journal of Child Sexual Abuse, 18(6), 611–622. Scholar
  83. Robertillo, G., & Terry, K. (2007). Can we profile sex offenders? A review of sex offender typologies. Aggression and Violent Behavior, 12, 508–519. Scholar
  84. Seghorn, T. K., & Cohen, M. (1980). The psychology of the rape assailant. In W. Cerran, A. L. McGarry, & C. Petty (Eds.), Modern legal medicine, psychiatry, and forensic science. Philadelphia: F.A. Davis.Google Scholar
  85. Seto, M. C. (2013). Internet sex offenders. Washington, D.C.: American Psychological Association.CrossRefGoogle Scholar
  86. Seto, M. C. (2016). The puzzle of male chronophilias. Archives of Sexual Behavior, 46, 3–22. Scholar
  87. Seto, M. C. (2017). The puzzle of male chronophilias. Archives of Sexual Behavior, 46(3), 3–22.PubMedCrossRefGoogle Scholar
  88. Seto, M. C., & Eke, A. W. (2005). The criminal histories and later offending of child pornography offenders. Sexual Abuse: A Journal of Research and Treatment, 17(2), 201–210. Scholar
  89. Seto, M. C., Cantor, J. M., & Blanchard, R. (2006). Child pornography offenses are a valid diagnostic indicator of pedophilia. Journal of Abnormal Psychology, 115(3), 610–615.PubMedCrossRefGoogle Scholar
  90. Seto, M. C., Hanson, R. K., & Babchishin, K. M. (2011). Contact sexual offending by men with online sexual offenses. Sexual Abuse: A Journal of Research and Treatment, 23(1), 124–145. Scholar
  91. Seto, M. C., Wood, J. M., Babchishin, K. M., & Flynn, S. (2012). Online solicitation offenders are different from child pornography offenders and lower risk contact sexual offenders. Law and Human Behavior, 36(4), 320–330.PubMedCrossRefGoogle Scholar
  92. Simons, D., Heil, P., & English, K. (2004). Utilizing polygraph as a risk prediction/treatment progress assessment tool. Paper presented at the 23rd annual conference of the association for the treatment of sexual abusers, Albuquerque, NM.Google Scholar
  93. Smallbone, S., Marshall, W. L., & Wortley, R. (2008). Preventing child sexual abuse: Evidence, policy and practice. Devon, UK: Willan Publishing.Google Scholar
  94. Sullivan, J., & Beech, A. R. (2003). Are collectors of child abuse images a risk to children? In A. MacVean & P. Spindler (Eds.), Policing paedophiles on the Internet (pp. 11–20). London: The New Police Bookshop.Google Scholar
  95. Sunstein, C. R. (2005). Laws of fear. Cambridge, UK: Cambridge University Press.CrossRefGoogle Scholar
  96. Taleb, N. N. (2007). The Black Swan: The impact of the highly improbable. New York: Random House.Google Scholar
  97. Taleb, N. N. (2012). Antifragile. Things that gain from disorder. New York: Random House.Google Scholar
  98. Tanner, J. M. (1962). Growth of adolescents (p. 1962). Oxford, UK: Blackwell Scientific Publications.Google Scholar
  99. Tomak, S., Weschler, F. S., Ghahramanlou-Holloway, M., Virden, T., & Nademin, M. E. (2009). An empirical study of the personality characteristics of internet sex offenders. Journal of Sexual Aggression, 15(2), 139–148. Scholar
  100. Tromovitch, P. (2009). Manufacturing mental disorder by pathologizing erotic age orientation: A comment on Blanchard et al. (2008). Archives of Sexual Behavior, 38, 328; author reply 331–4.PubMedCrossRefGoogle Scholar
  101. Wakeling, H. C., Howard, P., & Barnett, G. (2011). Comparing the validity of the RM2000 scales and OGRS3 for predicting recidivism by internet sexual offenders. Sex Abuse, 23(1), 146–168. Scholar
  102. Watson, D., & Friend, R. (1969). Measurement of social-evaluative anxiety. Journal of Consulting and Clinical Psychology, 33(4), 448–457. Scholar
  103. Webb, L., Craissati, J., & Keen, S. (2007). Characteristics of internet child pornography offenders: A comparison with child molesters. Sexual Abuse: A Journal of Research & Treatment, 19(4), 449–465. Scholar
  104. Wilcox, D., Sosnowski, D., Warberg, B., & Beech, A. (2005). Sexual history disclosure using the polygraph in a sample of British sex offenders in treatment. Polygraph, 34, 171–181.Google Scholar
  105. Wolak, J., Finkelhor, D., & Mitchell, K. J. (2005). Child-pornography possessors arrested in internet related crimes: Findings from the national juvenile online victimization study. (06-05-023). Washington, D.C.: Office of Juvenile Justice and Deliquency Prevention, Office of Justice Programs, U.S.DOJ.Google Scholar
  106. Wollek, T., & Durham, M. G. (2011). The Lolita effect—the media sexualiza-tion of young girls and five keys to fixing it. Journal of Youth and Adolescence, 40, 121–124.CrossRefGoogle Scholar
  107. Wortley, R., & Smallbone, S. (Eds.). (2006). Situational prevention of child sexual abuse. Monsey, NY: Criminal Justice Press.Google Scholar
  108. Zander, T. K. (2009). Adult sexual attraction to early-stage adolescents: phallometry doesn’t equal pathology (letter). Archives of Sexual Behavior, 38, 329–330.PubMedCrossRefGoogle Scholar

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Authors and Affiliations

  1. 1.Fairleigh Dickinson UniversityTeaneckUSA
  2. 2.School of PsychologyFairleigh Dickinson UniversityTeaneckUSA

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