The study analyzes the determinants of reading achievement for 500 fourthgraders in the Wilmington, Delaware, school district. The data are an improvement over those used by past researchers because of the concurrent availability of student IQ, pretest and posttest reading scores, student...

Anne Case et al. (2002), using cross-sectional data, found a positive relationship between children's health and income, with income's protective effect increasing with age. Janet Currie and Mark Stabile (2003), using a panel of Canadian children, found that low- and high-SES children respond...