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Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) Methodology Report for the Nine-Month Data Collection (2001-02). Volume 1: Psychometric Characteristics. NCES 2005-100
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Andreassen, Carol; Fletcher, Philip – US Department of Education, 2005
This report describes the psychometric characteristics and related methodology of the 9-month data collection of the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), which is sponsored by the U.S. Department of Education, National Center for Education Statistics (NCES) in the Institute of Education Sciences, in collaboration with several…
Descriptors: Psychometrics, Young Children, Data Collection, Research Methodology