The concept of “fixed emotional propensity” was explored by evaluating 62 sexual offenses committed by 23 male repeat offenders. Two general clusters of sex offenders were discerned, that is, more aggressive versus less aggressive offenders. In addition, sexual offenses committed by the same offender were much more similar than those committed by different offenders. The more similar the offense pattern, the greater the number of alleged offenses. In general, the results indicated that fixed emotional propensity is a useful concept in forensic evaluation.
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