P1: VENDOR/GDW/FOM/GEE P2: FOM/GCQ/GCZ/GCP/GAY QC: GFU
Sexual Abuse: A Journal of Research and Treatment [saj] PP097-298859 March 2, 2001 12:0 Style ﬁle version Nov. 19th, 1999
Sexual Abuse: A Journal of Research and Treatment, Vol. 13, No. 3, 2001
Personality-Based Typology of Adolescent Male
Sexual Offenders: Differences in Recidivism Rates,
Victim-Selection Characteristics, and Personal
James R. Worling
California Psychological Inventory scores from 112 adolescent male sexual of-
fenders aged 12–19 (M = 15.59, SD = 1.46) were examined. A cluster analysis
of factor-derived scores revealed four personality-based subgroups: Antisocial/
Signiﬁcant differences were observed between groups regarding history of phys-
ical abuse, parental marital status, residence of the offenders, and whether or
not offenders received criminal charges for their index sexual assaults. Subgroup
membership was unrelated to victim age, victim gender, and offenders’ history
of sexual victimization. Recidivism data (criminal charges) were collected for a
period ranging from 2 to 10 years (M = 6.23, SD = 2.02). Offenders in the two
more pathological groups (Antisocial/Impulsive and Unusual/Isolated) were most
likely to be charged with a subsequent violent (sexual or nonsexual) or nonviolent
offense. The four-group typology based solely on personality functioning is re-
markably similar to that found by W. R. Smith, C. Monastersky, and R. M. Deisher
in 1987 from their cluster analysis of MMPI scores. In addition to implications
for risk prediction, the present typology is suggestive of differential etiological
pathways and treatment needs.
KEY WORDS: adolescent sexual offenders; offender typology; personality; recidivism.
Portions of an earlier version of this paper were presented at the 14th Annual Conference of the
National Adolescent Perpetration Network, Winnipeg, Manitoba, Canada, June 1998.
Sexual Abuse: Family Education & Treatment (SAFE-T) Program, Thistletown Regional Centre for
Children & Adolescents, Toronto, Ontario, Canada.
To whom correspondence should be addressed at Sexual Abuse: Family Education & Treatment
(SAFE-T) Program, Thistletown Regional Centre for Children & Adolescents, 51 Panorama Court,
Toronto, Ontario, M9V 4L8, Canada; e-mail: firstname.lastname@example.org.
2001 Plenum Publishing Corporation