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User's Manual for the ECLS-K Third Grade. Public-Use Data File and Electronic Code Book. Early Childhood Longitudinal Study, Kindergarten Class of 1998-99. NCES 2004-001.

Early EducationKindergarten EducationCurriculum & InstructionEarly Childhood DevelopmentPediatricsKindergarten ClassEducationPreschool DevelopmentEarly Childhood ExperienceEarly Childhood LiteracyEarly Childhood EducationPreschool EducationPrimary EducationKindergarten TeachingElectronic Code BookEcls-k Third GradeChild Development