Exa mples of Other Longitudinal Databases: United States

Name of Study, Lead AgencyInitial SampleFollow-up
Early Childhood Longitudinal Study Birth Cohort (ECLS-B),106 Department of Education14 000 children born in 2001Data collection at birth, 9 mo, 2 y, preschool age, and entry to kindergarten
Early Childhood Longitudinal Study Kindergarten Cohort (ECLS-K),106 Department of EducationNearly 4 million kindergartners enrolled in 1998-1999Additional data collection in 1st, 3rd, 5th, and 8th grades
National Longitudinal Survey of Youth (NLSY79),107 Bureau of Labor Statistics12 686 men and women aged 14-22 y in 1979Interviewed annually through 1994, and biennially to present
NLSY79 Children and Young Adults,107 Bureau of Labor StatisticsOngoing enrollment of NLSY79 women's offspring, beginning in 1986Biennially to present
NLS Original Cohorts,107 Bureau of Labor Statistics5159 women aged 14-24 y in 1968; 5083 women aged 20-44 y in 1967; 5225 men aged 14-24 y and 5020 men aged 45-59 y in 1966Women: biennially to present; men: interviews ceased in 1981
Panel Study of Income Dynamics (PSID),108 National Science Foundation4800 families in 1968 core sample; ∼7400 families by 2005Annually 1968-1996, biennially to present