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Your query returned 5 studies. Series results are grouped under the most relevant study. Ungroup series results to view all 5 results.

1.
Mathematics Teaching in the 21st Century (ICPSR 34430)
Schmidt, William
2.
National Center for Early Development and Learning Multistate Study of Pre-Kindergarten, 2001-2003 (ICPSR 4283)
Clifford, Dick; Bryant, Donna; Burchinal, Margaret; et al.
3.
National Survey of Early Care and Education (NSECE), 2012 (ICPSR 35519)
NSECE Project Team (National Opinion Research Center)
5.
South Korean General Election Panel Study: Two Waves, 2008 (ICPSR 34348)
Chung, Wonchil; JoongAng Ilbo (South Korea); Seoul Broadcasting System; et al.

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