effect of schooling and ability on achievement test scores
By: Karsten Hansen, James J. Heckman, Kathleen J. Mullen.
Contributors: Heckman, James J.; Mullen, Kathleen J.; National Bureau of Economic Research.
Series: NBER working paper series -- no. 9881.; Working paper series (National Bureau of Economic Research) -- working paper no. 9881.
Publisher: National Bureau of Economic Research
Published: 2003
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 41
Subjects: Achievement tests; Educational tests and measurements; Education; Ability
Notes: "July 2003."

Includes bibliographical references.

Also available in PDF from the NBER world wide web site (www.nber.org).