SPECIALIZATION IN JUVENILE COURT CAREERS

The study of specialization in offending careers is relevant to the key theoretical issue of whether different types of offending reject only one underlying theoretical construct (such as delinquent tendency) or several different constructs. This research improves on previous studies of specialization in offending careers in three ways: (1) It is based on the complete juvenile court careers of a very large sample of offenders (nearly 70,000). (2) It uses a fine-grained classification of 21 offense types. (3) It uses a new measure of the strength of specialization, the Forward Specialization Coefficient (FSC). Both transition matrices and offending careers are studied.
The major findings from the transition matrices are (1) there was a small but significant degree of specialization in offending superimposed on a great deal of versatility: (2) the degree of specialization tended to increase with successive referrals, and this was not due to more versatile offenders dropping out: and (3) the relative extent to which offenders specialized in different offenses held for two jurisdictions (Maricopa County, Arizona, and Utah), both sexes, and all ages.
The analyses of offending careers showed that the most specialized offenses were runaway, burglary, motor vehicle theft, liquor violations, incorrigibility, curfew, truancy, and drugs. Nearly 20 percent of the offenders were identified as specialists. The conclusion is that, while offending was versatile to a first approximation, delinquency theories should attempt to explain specialization and specialists in order to yield more accurate quantitative predictions about offending careers.