Title: Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K): Combined User's Manual for the ECLS-K Eighth-Grade and K-8 Full Sample Data Files and Electronic Codebooks. NCES 2009-004.
Publication Year: 2009
Publication Date: 2009-02-01
Language: en
Type: article
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Cited By Count: 345
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