Sponsored by the US National Institute for Child Health and Human Development, this study of children and adolescents enrolled in seventh through twelfth grade in 1994 has focused on social networks, health behaviours and health outcomes, including sexual and reproductive health.
See Early Childhood Longitudinal Studies (ECLS), Longitudinal studies, National Child Development Study (NCDS), National Educational Longitudinal Surveys (NELS), National Institute for Child Health and Human Development Study of Early Child Care (NICHD-SECC), National Longitudinal Survey of Children and Youth (NLSCY), National Longitudinal Survey of Youth (NLSY), New York Longitudinal Study (NYLS)