From learning to earning / Susan E. Mayer -- Aptitude or achievement : why do test scores predict educational attainment and earnings? / Christopher Jencks and Meredith Phillips -- Economic success and the evolution of schooling and mental ability / Christopher Winship and Sanders D. Korenman -- Does the timing of school affect how much children learn? / Susan E. Mayer and David Knutson -- School reforms : how much do they matter? / Paul E. Peterson -- How does class size relate to achievement in schools? / Frederick Mosteller -- The evidence on class size / Eric A. Hanushek -- The effects of math and math-related courses in high school / Robert H. Meyer -- Do hard courses and good grades enhance cognitive skills? / Jay R. Girotto and Paul E. Peterson -- Nerd harassment, incentives, school priorities, and learning / John H. Bishop -- The effects of school choice on curriculum and atmosphere / Caroline M. Hoxby -- The effects of school choice in New York City / Paul E. Peterson ... [et al.] -- The costs and benefits of school reform / Susan E. Mayer and Paul E. Peterson.