First Report of the Collaborative Outcome Data Project on the Effectiveness of Psychological Treatment for Sex Offenders

This meta-analytic review examined the effectiveness of psychological treatment for sex offenders by summarizing data from 43 studies (combined n = 9,454). Averaged across all studies, the sexual offence recidivism rate was lower for the treatment groups (12.3%) than the comparison groups (16.8%, 38...

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Bibliographic Details
Published in:Sexual abuse 2002-04, Vol.14 (2), p.169-194
Main Authors: Hanson, R. Karl, Gordon, Arthur, Harris, Andrew J. R., Marques, Janice K., Murphy, William, Quinsey, Vernon L., Seto, Michael C.
Format: Article
Language:English
Subjects:
Collaboration
Correctional treatment programs
Evaluation
Forecasting
Humans
Meta-analysis
Outcome and Process Assessment (Health Care)
Psychotherapy
Recidivism
Recurrence
Sex crimes
Sex Offenders
Sex Offenses - prevention & control
Sex Offenses - psychology
Treatment Methods
Treatment Outcome
Treatment Outcomes
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Summary:This meta-analytic review examined the effectiveness of psychological treatment for sex offenders by summarizing data from 43 studies (combined n = 9,454). Averaged across all studies, the sexual offence recidivism rate was lower for the treatment groups (12.3%) than the comparison groups (16.8%, 38 studies, un-weighted average). A similar pattern was found for general recidivism, although the overall rates were predictably higher (treatment 27.9%, comparison 39.2%, 30 studies). Current treatments (cognitive-behavioral, k = 13; systemic, k = 2) were associated with reductions in both sexual recidivism (from 17.4 to 9.9%) and general recidivism (from 51 to 32%). Older forms of treatment (operating prior to 1980) appeared to have little effect. Future directions for improving the quality of sex offender treatment outcome evaluations are discussed.
ISSN:1079-0632
1573-286X
DOI:10.1177/107906320201400207