Early Childhood Longitudinal Study: Birth Cohort, 2001-2002, 2-year Data [UNITED STATES] (ICPSR 28061)

Principal Investigator(s): United States Department of Education. Institute of Education Sciences. National Center for Education Statistics


The Early Childhood Longitudinal Study (ECLS) is designed to provide decision makers, researchers, child care providers, teachers, and parents with detailed information about children's early life experiences. The birth cohort of the Early Childhood Longitudinal Study (ECLS-B) looks at children's health, development, care, and education during the formative years from birth through first grade. This second wave of the data was collected when the cohort was approximately two years of age. During the two-year collection, the BSF-R again was used to measure cognitive and motor development. A different taped interaction, the Two Bags Task, was used to assess children's socioemotional development. A modified Q-sort was included in the two-year collection to assess the quality of children's attachment to their primary caregiver. Again, all children had their height, weight, and middle-upper arm circumference (MUAC) measured, and children born with very low birth weight had their head circumference measured.

Access Notes

Study Description

Scope of Study

Subject Terms:    child care, child development, child health, early childhood education

Geographic Coverage:    United States

Time Period:   

  • 2003--2004

Data Collection Notes:

These data are not available from ICPSR. Users should consult the data owners directly for details on obtaining the data and documentation.

For ECLS data that is currently distributed by ICPSR, see Early Childhood Longitudinal Study (ECLS)Series.

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