Abstract

The Zurich Project on the Social Development from Childhood to Adulthood (z-proso) began in 2004 in response to the need for a better evidence base to support optimal child social development and prevent crime and violence. Since then, the study has tracked the development of a diverse sample of youths (N = 1,675 in the target sample; ~50% female) from age 7 (n = 1,360) to age 20 (n = 1,180), with primary data collection waves at ages 7, 8, 9, 10, 11, 12, 13, 15, 17, and 20. The study uses a multi-method, multi-informant design that combines teacher, youth, and parent reports with observational and behavioural measures, biosampling, functional imaging, and ecological momentary assessment. Analyses of the data have contributed important evidence to a diversity of topics in child and adolescent development, illuminating the developmental roots of crime and aggression, the impacts of exposure to different forms and combinations of victimisation, and trajectories of mental health and neurodevelopmental symptoms.

Highlights

  • The Zurich Project on the Social Development from Childhood to Adulthood (z-proso) was launched in 2004 as a combined randomised field experiment and cohort study

  • Its primary aims are to contribute to evidence-based developmental violence prevention and to advance understanding of the life-course development of social skills and antisocial behaviour

  • The final report identified a lack of universal early prevention programmes for families and schools as a major gap in the portfolio of violence prevention in the City of Zurich (Eisner et al, 2003)

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Summary

Why Was the Cohort Set Up?

The Zurich Project on the Social Development from Childhood to Adulthood (z-proso) was launched in 2004 as a combined randomised field experiment and cohort study. The final report identified a lack of universal early prevention programmes for families and schools as a major gap in the portfolio of violence prevention in the City of Zurich (Eisner et al, 2003) It recommended a long-term cohort study to examine intervention outcomes and related dynamics in child and adolescent behaviour. The original purpose of z-proso was fourfold: (1) to describe the social development of children from childhood to adolescence in a diverse urban sample, with a particular focus on aggressive and non-aggressive conduct problems; (2) to contribute to knowledge on the developmental risk factors of aggressive and violent behaviour and the consequences of victimisation; (3) to identify and examine protective factors that could help to strengthen violence prevention policies in families, schools, and neighbourhoods; and (4) to evaluate the short- and long-term effectiveness of two evidence-based universal interventions, delivered through the school system by specialist implementation teams.

Who Is in the Cohort?
Female primary caregiver country of birth
How and How Often Have They Been Followed Up
Young person questionnaires and assessments
Youth justice contact
What Has Been Measured?
What Has Been Found?
Intervention Effects
Longitudinal Cohort Methodology
Victimisation from Childhood to Early Adulthood
What Are the Main Strengths and Weaknesses?
Profile In A Nutshell
Main Categories of Data Collected
Findings
Collaboration and Data Access

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