Toggle high contrast Youth BGSU College of Arts and Sciences The Center for Family & Demographic Research Resources Data Data Holdings Youth Early Childhood Longitudinal Study (ECLS) National Longitudinal Study of Adolescent Health, Waves 1- 3 National Longitudinal Survey of Youth (NLSY), 1979-1992 National Longitudinal Survey of Youth (NLSY), 1997 National Youth Survey (NYS), 1976-1987 The Center for Family & Demographic Research About Research Resources Events Ohio Population News Updated: 12/01/2017 10:41PM