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Comparisons to the ECLS-B & ECLS-K

The ECLS-K:2011 is the third in an important series of longitudinal studies of young children sponsored by the U.S. Department of Education that examine child development, school readiness, and early school experiences. The prior studies consist of two cohorts—a kindergarten cohort and a birth cohort. The ECLS-K:2011 shares many of the same goals as its predecessors, the Early Childhood Longitudinal Study, Kindergarten Class of 1998-1999 (ECLS-K) and the Early Childhood Longitudinal Study, Birth Cohort of 2001 (ECLS-B), but also advances research possibilities by providing updated information and addressing recent changes in education policy.