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The Revised Screening Scale for Pedophilic Interests: Predictive and Concurrent Validity
Michael C Seto1, Jeffrey C Sandler2, Naomi J Freeman2
11 Royal Ottawa Health Care Group, Brockville, Ontario, Canada.
Sexual Abuse : a Journal of Research and Treatment
|December 19, 2015
Summary
The Screening Scale for Pedophilic Interests-2 (SSPI-2) effectively identifies pedophilic interests in sex offenders. It shows strong predictive and concurrent validity, aiding in assessing risk for sexual reoffense.
Area of Science:
- Forensic Psychology
- Clinical Psychology
- Criminology
Background:
- Assessing pedophilic interests is crucial for managing sex offender populations.
- Existing screening tools require validation for accuracy and utility.
Purpose of the Study:
- To evaluate the predictive and concurrent validity of the Screening Scale for Pedophilic Interests (SSPI) and its revision (SSPI-2).
- To determine the SSPI-2's utility in identifying pedophilic sexual interests among sex offenders.
Main Methods:
- Utilized a sample of 2,416 sex offenders in New York State.
- Assessed predictive validity against sexual rearrest rates.
- Examined concurrent validity using clinician ratings of sexual preoccupation, cognitions, and self-regulation.
Main Results:
- Both SSPI and SSPI-2 scores significantly predicted sexual rearrest.
- SSPI-2 demonstrated superior discrimination in rearrest prediction within 5 years.
- Measures showed strong convergent validity with sexual preoccupation and cognitions, and divergent validity from self-regulation issues.
Conclusions:
- The SSPI-2 is a valid and specific screening tool for assessing pedophilic sexual interests in sex offenders with child victims.
- SSPI-2 offers improved discrimination for rearrest risk compared to the original SSPI.
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