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Updated: Apr 3, 2026
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The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress
Published on: July 4, 2013
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Behavioral and Psychological Predictors of Multiple-Perpetrator Rape Proclivity: A Community Sample Study of Men
Saad Iqbal1, Alexandra M Zidenberg2, Michelle Schwier3
1School of Graduate Psychology, Pacific University, Hillsboro, OR, USA.
Sexual Offending (Trier, Germany)
|February 20, 2026
Summary
Research indicates that multiple-perpetrator rape (MPR) is common, yet understudied. This study identified aggression, deviant sexual fantasies, and anger rumination as key correlates predicting proclivity for MPR.
Area of Science:
- Forensic Psychology
- Criminology
- Sexual Violence Research
Background:
- Most sexual violence research overlooks incidents with multiple offenders.
- One-fourth to one-third of rapes involve multiple perpetrators.
- Limited understanding of factors contributing to multiple-perpetrator rape (MPR).
Purpose of the Study:
- Investigate correlates of proclivity for MPR.
- Build upon existing MPR literature.
- Reconfirm prior findings on MPR.
Main Methods:
- Community men completed validated questionnaires.
- Measures included the Multiple-Perpetrator Rape Interest Scale (M-PRIS).
- Assessed aggression, loneliness, sexual fantasy, anger rumination, rape myths, and psychopathy.
Main Results:
- The strongest correlate of M-PRIS was sadomasochistic sexual fantasy (r = .79).
- A regression model explained 61.4% of the variance in MPR proclivity.
- Aggression, sexual fantasy, and anger rumination were significant predictors.
Conclusions:
- Therapeutic interventions should target aggression, deviant sexual fantasies, and anger rumination in individuals with MPR interest.
- Educational and preventive programs can use these insights to reduce MPR occurrences.
- Understanding correlates of MPR is crucial for prevention and intervention.
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