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Psychometric analysis of the Sexual Interest Cardsort Questionnaire
L A Holland1, S C Zolondek, G G Abel
1Behavioral Medicine Institute of Atlanta, Georgia 30309, USA.
Sexual Abuse : a Journal of Research and Treatment
|June 29, 2000
Summary
The Sexual Interest Cardsort Questionnaire (SI) and its shortened version (SIS) demonstrate high reliability and concurrent validity in assessing sexual offenders. These self-report measures are effective tools for clinical evaluation and research.
Area of Science:
- Psychology
- Forensic Psychology
- Clinical Assessment
Background:
- Accurate assessment of sexual interest and behavior in offenders is crucial for treatment and risk management.
- Self-report measures, when validated, can supplement clinical interviews in comprehensive evaluations.
Purpose of the Study:
- To evaluate the reliability and concurrent validity of the Sexual Interest Cardsort Questionnaire (SI).
- To assess the psychometric properties of a shortened version of the SI (SIS).
Main Methods:
- The study assessed 371 sexual offenders using the 75-item SI and clinical interview data.
- Reliability was measured using Cronbach's alpha; concurrent validity was assessed using Pearson's r and polychoric correlation coefficients.
- A 45-item shortened SI (SIS) was developed and its psychometric properties were re-evaluated.
Main Results:
- The SI demonstrated high internal consistency (Cronbach's alpha 0.71–0.96) across 15 categories.
- The shortened SIS also showed high reliability (Cronbach's alpha 0.78–0.97).
- Both SI and SIS showed significant correlations with clinical indicator variables for sexually deviant categories, indicating good concurrent validity.
Conclusions:
- The SI and its shortened version (SIS) are reliable and valid instruments for assessing sexual interests in male sexual offenders.
- These self-report measures are valuable tools for both clinical assessment and research in forensic psychology.