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The Early Childhood Longitudinal Study, Kindergarten Class of 2010-11 (ECLS-K:2011), is part of the Early Childhood Longitudinal Study (ECLS) program; program data is available since 1998-99 at ....
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The Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), is a study that is part of the Early Childhood Longitudinal Study program; program data is available since 1998-99 at . ECLS-B...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: November 11, 2026 at 06:04 PM -
The Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K), is part of the Early Childhood Longitudinal Study (ECLS) program; program data is available since 1998-99 at ....
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: November 11, 2026 at 06:04 PM