Narrow search
Showing 1 - 10 of 15
Cover Image
The academic achievement gap in grades 3 to 8
Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L. - 2006
Persistent link: https://www.econbiz.de/10003321693
Cover Image
Would higher salaries keep teachers in high-poverty schools? : Evidence from a policy intervention in North Carolina
Clotfelter, Charles T.; Glennie, Elizabeth; Ladd, Helen F. - 2006
Persistent link: https://www.econbiz.de/10003336346
Cover Image
Teacher credentials and student achievement in high school : a cross-subject analysis with student fixed effects
Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L. - 2007
Persistent link: https://www.econbiz.de/10003604265
Cover Image
Are teacher absences worth worrying about in the US?
Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L. - 2007
Persistent link: https://www.econbiz.de/10003613472
Cover Image
Public school choice and integration : evidence from Durham, North Carolina
Bifulco, Robert (contributor); Ladd, Helen F. (contributor);  … - 2007
Persistent link: https://www.econbiz.de/10003620495
Cover Image
Scaling the digital divide : home computer technology and student achievement
Vigdor, Jacob L.; Ladd, Helen F. - 2010
Persistent link: https://www.econbiz.de/10003981378
Cover Image
The growing segmentation of the charter school sector in North Carolina
Ladd, Helen F.; Clotfelter, Charles T.; Holbein, John B. - 2015
Persistent link: https://www.econbiz.de/10010520218
Cover Image
Public universities, equal opportunity, and the legacy of Jim Crow : evidence from North Carolina
Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L. - 2015
Persistent link: https://www.econbiz.de/10011372596
Cover Image
Algebra for 8th graders : evidence on its effects from 10 North Carolina districts
Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L. - 2012
Persistent link: https://www.econbiz.de/10009697868
Cover Image
Raising the bar for college admission : North Carolina' s increase in minimum math course requirements
Clotfelter, Charles T.; Hemelt, Steven W.; Ladd, Helen F. - 2016
Persistent link: https://www.econbiz.de/10011435758