Health
The Ultimate Guide to the Add Health Study: Insights from a Longitudinal Study
The National Longitudinal Study of Adolescent to Adult Health, also known as Add Health, is a nationally representative study of the health, behavior, and social contexts of a cohort of adolescents in the United States. The study began in 1994 with a sample of over 20,000 students in grades 7-12. Add Health has followed these […]