An evaluation of classification criteria for juvenile sex offenders.

Victim age is commonly used in the classification of juvenile sexual offenders (JSOs). However, the results of studies comparing JSOs who offend peers (peer offenders) with those who offend children (child molesters) are variable and inconclusive. Reasons for this variability include the lack of attention to JSOs who offend both children and peers (mixed offenders) and the variability across studies in the classification criteria used to assign JSOs to subgroups. Some studies use victim age, others use offender-victim age discrepancies, and still others use a combination of victim age and age discrepancies to classify JSOs. These variations may result in samples of JSOs that are not comparable across studies. The primary purpose of the present research was to examine the strength of the relationship between JSO subgroup membership (child, peer, and mixed offenders) and personal, criminal history, and offense history variables using several different classification methods commonly used in JSO research. Patterns of relationships between subgroup membership and the dependent variables were then compared across the classification methods to determine whether changes in classification criteria changed the pattern of results. The results indicated that the pattern of relationships between subgroups and the dependent variables changed little when classification criteria varied. Consequently, variation in classification criteria is unlikely to be contributing to the inconsistencies of the findings when comparing victim age based subgroups of JSOs.

Offense history and recidivism in three victim-age-based groups of juvenile sex offenders.

This study compared subgroups of juvenile sex offenders (JSOs) who victimized children (child offenders), peers (peer offenders), or both children and peers (mixed offenders) on sexual and nonsexual offense history, treatment outcomes, and recidivism to determine if these are distinct and valid subgroups. Though the group of mixed offenders was small, results showed that they exhibited a more diverse and more physically intrusive sexual offense history than the other JSOs and were less likely to successfully complete treatment. Sexual and nonsexual recidivism rates of mixed offenders did not differ from the other subgroups despite subgroup differences in juvenile sexual and nonsexual criminal records. However, differences in sexual recidivism rates of child versus peer offenders were found when the mixed offenders were either excluded from the sample or combined with child offenders. The results highlight the need to include mixed offenders in future research examining the etiology of sexual offending, treatment, and recidivism of JSOs.

Classification of severe male juvenile offenders using the MACI clinical and personality scales.

Classifications for severe juvenile offenders and ones that include mental health needs are lacking. Thus, in this study, adolescent male offenders (N = 652) committed to a residential facility were clustered on personality and clinical scales of the Millon Adolescent Clinical Inventory (Millon, 1993) into 5 groups (including 4 found in other typologies). As expected, the impulsive/reactive and psychopathy groups had more severe criminal histories and the impulsive/reactive and anxious/inhibited groups had increased suicidal behaviors and poor psychosocial functioning. The impulsive/reactive group showed expected verbal deficits. The unremarkable group lacked discernable personality/clinical problems and was unremarkable on dependent variables. A conforming group emerged that may be unique to severe juvenile offender populations. Future studies should examine institutional adjustment and outcomes among the identified groups.