RADAR-Old follows 233 adolescents of Dutch origin who at baseline were 15 years old and scored in the non-clinical range of externalizing problems. All participants were selected from secondary schools in and around Utrecht, the Netherlands. From 2005 to 2010, adolescents, their parents, siblings, and friends were assessed annually. From 2010 onwards, the frequency of assessments was changed from annual to biannual assessments, and the focus shifted to the young adult and their romantic partner. The sample started as the family sample of the CONflicts And Management Of Relationships longitudinal study.
Study design
Cohort
Number of participants at first data collection
327 (participants)
Age at first data collection
13 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
2001
Primary Institutions
Maastricht University (Universiteit Maastricht, UM)
Vrije Universiteit Amsterdam (VU Amsterdam)
Profile paper DOI
Funders
Dutch Research Council (Nederlandse Organisatie voor Wetenschappelijk Onderzoek, NWO)
Stichting Achmea Slachtoffer en Samenleving (SASS)
Utrecht University (Universiteit Utrecht)
Vrije Universiteit Amsterdam (VU Amsterdam)
Ongoing?
Yes
Data types collected
Engagement
Keywords
Consortia and dataset groups