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2. The scholastic aptitude test: participation and performance;Dynarski;Econ. Educ. Rev.,1987
3. Conceptual and empirical issues in the estimation of education production functions;Hanushek;J. Human Resources,1979
4. Sources of Uncertainty of ten Ignored in Adjusting State Mean SAT Scores for Differential Participation Rates: The Rules of the Game;Holland,1989
5. The State of Mathematics Achievement: NAEP's 1990 Assessment of the Nation and the Trial Assessment of the States;Mullis,1991