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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
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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
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Scaling the digital divide : home computer technology and student achievement
Vigdor, Jacob L.; Ladd, Helen F. - 2010
Persistent link: https://www.econbiz.de/10003981378
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The aftermath of accelerating algebra : evidence from a district policy initiative
Clotfelter, Charles T.; Ladd, Helen F.; Vigdor, Jacob L. - 2012
Persistent link: https://www.econbiz.de/10009561434
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When incentives matter too much : explaining significant responses to irrelevant information
Ahn, Thomas; Vigdor, Jacob L. - 2014
Persistent link: https://www.econbiz.de/10010393975