National Longitudinal Study of Adolescent Health (Add Health), 1990-2008: Political Context Database [Restricted Use]

The National Longitudinal Study of Adolescent Health (Add Health) is a longitudinal study of a nationally representative sample of adolescents in grades 7-12 in the United States during the 1994-1995 school year. The Add Health cohort has been followed into young adulthood with four in-home interviews, the most recent in 2008, when the sample was aged 24-32. Add Health combines longitudinal survey data on respondents' social, economic, psychological, and physical well-being with contextual data on the family, neighborhood, community, school, friendships, peer groups, and romantic relationships, providing unique opportunities to study how social environments and behaviors in adolescence are linked to health and achievement outcomes in young adulthood. The fourth wave of interviews expanded the collection of biological data in Add Health to understand the social, behavioral, and biological linkages in health trajectories as the Add Health cohort ages through adulthood. The Add Health Political Context Database provides an array of measures that describe the political environments in which Add Health respondents reside and, thereby, enables researchers to explore the role of certain contextual influences on adolescent and early adult political behaviors. The Political Context Data was collected from 1990-2004. For more information, please see the study website.