Reliability and Factor Structure of the Sex Offender Treatment Intervention and Progress Scale

Assessment of risk of sexual recidivism has progressed from tools containing only static factors to tools including dynamic (i.e., changeable) risk factors. The psychometric properties and factor structure of one such scale, the Sex Offender Treatment Intervention and Progress Scale (SOTIPS) were ex...

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Bibliographic Details
Published in:Sexual abuse Vol. 35; no. 1; pp. 83 - 102
Main Authors: Miner, Michael H., Brouillette-Alarie, Sébastien, Davies, Simon T., Newstrom, Nicholas, Robinson, Beatrice “Bean” E., Thornton, David, Hanson, R Karl
Format: Journal Article
Language:English
Published: Los Angeles, CA SAGE Publications 01.02.2023
SAGE PUBLICATIONS, INC
Subjects:
Correctional treatment programs
Criminals
Deviance
Exploratory factor analysis
Factor analysis
Humans
Intervention
Male
Measures
Offenders
Offenses
Probation
Probation service
Property
Psychometrics
Quantitative psychology
Recidivism
Reliability
Reproducibility of Results
Risk
Risk Assessment
Risk behavior
Risk Factors
Sex offenders
Sex Offenses - prevention & control
Sexual behavior
Time
dynamic risk
needs
measurement invariance
reliability
factor structure
sex offender treatment intervention and progress scale
sexual offending
ISSN:1079-0632, 1573-286X, 1573-286X
Online Access:Get full text
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Summary:Assessment of risk of sexual recidivism has progressed from tools containing only static factors to tools including dynamic (i.e., changeable) risk factors. The psychometric properties and factor structure of one such scale, the Sex Offender Treatment Intervention and Progress Scale (SOTIPS) were explored. Seven hundred and thirty-one men assigned probation for sexual crimes in New York City and Maricopa County, Arizona were administered SOTIPS three times: intake into probation, six months later, and six months after that. SOTIPS showed good internal consistency (Time 1 ω = .87, Time 2 ω = .89, and Time 3 ω = .91), and acceptable inter-rater reliability (for the 26 cases rated in the same month, ICC =.821). An exploratory factor analysis did not result in the original factor structure proposed by the developers; instead, SOTIPS showed two factors: sexual risk and antisocial opposition. This factor structure required the averaging of two items to avoid collinearity. SOTIPS showed temporal invariance indicating that its factor structure and its association to underlying latent variables are consistent over time.
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ISSN:1079-0632
1573-286X
1573-286X
DOI:10.1177/10790632221082667