The Research on Adolescent Development And Relationships-old cohort (RADAR-old) is an ongoing longitudinal study that started in 2002/2003. RADAR-old focuses on the interactions and conflicts of adolescents with parents and peers, their emotional state, personality, identity, and internalizing and externalizing problem behaviour. RADAR-Old investigates the development of 327 participants from early adolescence into young adulthood (currently, data is available upon request from ages 13-28 years old). Additionally, their parent(s), intimate partner (from W7 onwards), sibling, and (best) friend also participated in the study.
**ATTENTION: To request this data, please follow the instructions in file 4. DANS_data request form RADAR-OLD-[date]-[name].pdf and request the files in the Data files tab from this page.
Participants from the family sample of the CONflicts And Management Of Relationships (CONAMORE) longitudinal study were asked to participate in RADAR-old. Therefore, there is participant overlap between the CONAMORE family sample and RADAR-old participants (all data of the CONAMORE cohort are stored in another project folder at DANS as well).
RADAR has been financially supported by main grants from the Netherlands Organisation for Scientific Research (GB-MAGW 480-03-005, GB-MAGW 480-08-006), Stichting Achmea Slachtoffer en Samenleving (SASS), the Netherlands Organisation for Scientific Research to the Consortium Individual Development (CID; 024.001.003), a grant of the European Research Council (ERC-2017-CoG - 773023 INTRANSITION), and various other grants from the Netherlands Organisation for Scientific Research, VU University Amsterdam, and Utrecht University.
