THE CONTRIBUTION OF GANG MEMBERSHIP TO DELINQUENCY BEYOND DELINQUENT FRIENDS*

Both being involved in a gang and having friends who are delinquent have been shown to contribute to an individual's own delinquency. However, the unique contribution of gang membership to delinquency, above and beyond having delinquent peers, has not been well studied. Increased delinquency among gang members may not be due to gang membership per se, but to the members' association with delinquent peers. Using data from the Seattle Social Development Project, this research compared involvement in delinquency for gang members, nongang youths with delinquent friends, and nongang youths who did not have delinquent friends. MANOVA and follow-up ANOVA were conducted to determine differences on measures of delinquency among the three groups at ages 14 and 15. Gang members were found to have a higher rate of offending in the past year when compared with the other groups. The contribution of gang membership to delinquency above and beyond having delinquent friends was also examined using structural equation modeling. Gang membership was found to independently predict both self-reported and officially recorded delinquency beyond the effects of having delinquent friends and prior delinquency. Implications of the results for delinquency prevention and intervention efforts are discussed.     

COMPARING DELINQUENCY CAREERS IN COURT RECORDS AND SELF‐REPORTS*

Most knowledge about delinquency careers is derived from official records. The main aim of this paper is to compare conclusions about delinquency careers derived from court referrals with conclusions derived from self‐reports. Data are analyzed from the Seattle Social Development Project, which is a prospective longitudinal survey of 808 youths. Annual court and self‐report data were available from age 11 to age 17 for eight offenses. The prevalence of offending increased with age, in both court referrals and self‐reports. There was a sharp increase in the prevalence of court referrals between ages 12 and 13, probably because of the reluctance of the juvenile justice system to deal with very young offenders. The individual offending frequency increased with age in self‐reports, but it stayed constant in court referrals, probably because of limitations on the annual number of referrals per offender. There was significant continuity in offending in both court referrals and self‐reports, but continuity was greater in court referrals. The concentration of offending (and the importance of chronic offenders) was greater in self‐reports. An early age of onset predicted a large number of offenses in both self‐reports and court referrals. However, an early onset predicted a high rate of offending in court referrals but not in self‐reports, possibly because very young offenders who were referred to court were an extreme group. About 37% of offenders and 3% of offenses led to a court referral. The more frequent offenders were less likely to be referred to court after each offense, but most of them were referred to court sooner or later. There was a sharp increase between ages 12 and 13 in the probability of an offender and an offense leading to a court referral. It is concluded that criminal career research based on self‐reports sometimes yields different conclusions compared with research based on official records.