Sexual Abuse: A Journal of Research and Treatment, Vol. 18, No. 2, April 2006 (
The Factor Structure of Static Actuarial Items:
Its Relation to Prediction
Howard E. Barbaree,
Calvin M. Langton,
and Edward J. Peacock
Published online: 26 August 2006
Principal components analysis was conducted on items contained in actuarial
instruments used with adult sex offenders, including: the Rapid Assessment of
Sex Offender Risk for Recidivism (RASORR), the Static-99, the Violence Risk
Appraisal Guide (VRAG), the Sex Offender Risk Appraisal Guide (SORAG), and
the Minnesota Sex Offender Screening Tool-Revised (MnSOST-R). In a data set
that included child molesters and rapists (N = 311), six interpretable components
were identiﬁed: Antisocial Behavior, Child Sexual Abuse, Persistence, Detached
Predatory Behavior, Young and Single, and Male Victim(s). The RRASOR was
highly correlated with Persistence, and the VRAG and SORAG were highly cor-
related with Antisocial Behavior. Antisocial Behavior was a signiﬁcant predictor
of violent recidivism, while Persistence and Child Sexual Abuse were signiﬁcant
predictors of sexual recidivism.
KEY WORDS: actuarial assessment; sex offenders; recidivism; antisocial behavior; sexual
Perhaps the most signiﬁcant advance in the assessment of the sex offender
during the past 15 years is the development and promulgation of actuarial
instruments that are demonstrably predictive of recidivism among adult male
sexual offenders (Doren, 2002; Hanson, 1998; Quinsey, Harris, Rice, & Cormier,
1998). In a recent meta-analysis of sex offender recidivism studies, Hanson
University of Toronto, Toronto, Ontario, Canada.
Law and Mental Health Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
University of Nottingham, Nottingham, United Kingdom.
Peaks Unit, Rampton Hospital, Nottinghamshire Healthcare Trust, Nottinghamshire, United
Correctional Services of Canada, Canada.
Law and Mental Health Program, Centre for Addiction and Mental Health, 1001 Queen Street West,
Toronto, Ontario M6J 1H4, Canada.
To whom correspondence should be addressed at e-mail: howard email@example.com.
2006 Springer Science+Business Media, Inc.