| Sumario: | The Project on Human Development in Chicago Neighborhoods (PHDCN) was a large-scale, interdisciplinary study of how families, schools, and neighborhoods affect child and adolescent development. One component of the PHDCN was the Longitudinal Cohort Study, which was a series of coordinated longitudinal studies that followed over 6,000 randomly selected children, adolescents, and young adults, and their primary caregivers over time to examine the changing circumstances of their lives, as well as the personal characteristics, that might lead them toward or away from a variety of antisocial behaviors. Numerous measures were administered to respondents to gauge various aspects of human development, including individual differences, as well as family, peer, and school influences. One such measure was the Mental Health Services protocol. This was adapted from the Service Utilization module of the Use, Need, Outcomes, and Costs in Children and Adolescent Population study, and it obtained information about services the subject had received for emotional, behavioral, drug, or alcohol problems. It was administered to subjects' primary caregivers in Cohorts 0, 3, 6, 9, and 12, and to subjects, themselves, in Cohorts 15 and 18. It is closely related to PROJECT ON HUMAN DEVELOPMENT IN CHICAGO NEIGHBORHOODS (PHDCN): SERVICE USE, WAVE 2, 1997-2000 (ICPSR 13656).
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