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Author: "Helen F. Ladd"   

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PostedTitleAuthorIn / AtTypeYear
3/16/16The Aftermath of Accelerating Algebra Evidence from District Policy InitiativesCharles T. Clotfelter, Helen F. Ladd, Jacob L. VigdorThe Journal of Human ResourcesPeer-Reviewed Article2015
3/22/12The Aftermath of Accelerating Algebra: Evidence from a District Policy InitiativeCharles T. Clotfelter, Helen F. Ladd, Jacob L. VigdorNational Center For Analysis Of Longitudinal Data...Working Paper2012
1/05/11Problems with the Use of Student Test Scores to Evaluate TeachersEva L. Baker, Paul E. Barton, Linda Darling-Hammond, Edward Haertel, Helen F. Ladd, Robert L. Linn, Diane Ravitch, Richard Rothstein, Richard J. Shavelson, Lorrie A. ShepardThe Education Policy AllianceReport2010
4/03/07How and Why Do Teacher Credentials Matter for Student Achievement?Charles T. Clotfelter, Helen F. Ladd, Jacob L. VigdorCALDERWorking Paper2007