Samenvatting

This article examines whether samples obtained through offline and online modes, within the context of juvenile delinquency research, differ from one another, when in principle the same population of youths could be reached. Youths participating through a computer-assisted web interviewing mode (CAWI) report less delinquent behaviour, fewer risk factors for delinquency, and exhibit a lower prevalence in police registration, compared to youths participating through a mixed computer-assisted personal interviewing and computer-assisted self-interviewing mode (CAPI/CASI).