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.
National Longitudinal Study of Adolescent Health (Add Health) (NLSAH)
|Method||CAPI, Wave I, Stage 1 School sample: stratified, random sample of all high schools in the United States. A school was eligible for the sample if it included an 11th grade and had a minimum enrollment of 30 students. A feeder school, a school that sent graduates to the high school and that included a 7th grade, was also recruited from the community. Wave I, Stage 2: An in-home sample of 20,745 adolescents consisting of a core sample from each community plus selected special oversamples was interviewed in 1995.
Eligibility for the oversamples was determined by the adolescent's responses on the In-School Questionnaire. Adolescents could qualify for more than one sample. At Wave II, respondents who were in grades 7-11 at Wave I were re-interviewed. Wave III: The in-home Wave III sample consists of Wave I respondents who could be located and re-interviewed six years later. Wave III also collected High School Transcript Release Forms to be used for the AHAA study. At Wave IV, 15,701 Wave I respondents were re-interviewed in 2008.
|Universe||Adolescents in grades 7-12 and their families|
|Topics Covered||academic achievement, adolescents, alcohol consumption, birth control, classroom environment, contraception, dating (social), drinking behavior, drug use, eating habits, educational environment, families, family planning, family relationships, family structure, friendships, health, health behavior, health care access, health status, household composition, interpersonal relations, living arrangements, marriage, neighborhood characteristics, neighborhoods, parent child relationship, parental attitudes, parental influence, physical characteristics, physical condition, physical fitness, physical limitations, pregnancy history, public assistance programs, religious behavior, religious beliefs, school attendance, self concept, self esteem, sexual attitudes, sexual behavior, smoking, social environment, social networks, tobacco use, violent behavior, welfare services|
|Notes||Wave 1 Public use data|
|All other Asian||44|
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