Early Childhood Longitudinal Study [United States]: Birth Cohort, 2001-2002, 9-Month Data (ICPSR 4261) Principal Investigator(s): United States Department of Education. National Center for Education Statistics https://doi.org/10.3886/ICPSR04261.v1 Version V1 This data collection has been deaccessioned; it is no longer distributed by ICPSR. Slide tabs to view more At A Glance Data & Documentation Variables Publications Metadata Staff Project Description Version(s) Original Release Date 2006-01-05 Version Date 2014-01-24
