Ethnicity might not play as large a role in charting educational success as experts previously thought, writes Sean F. Reardon in the New York Times; it's all about how much the parents earn.
To make this trend concrete, consider two children, one from a family with income of $165,000 and one from a family with income of $15,000. These incomes are at the 90th and 10th percentiles of the income distribution nationally, meaning that 10 percent of children today grow up in families with incomes below $15,000 and 10 percent grow up in families with incomes above $165,000.
In the 1980s, on an 800-point SAT-type test scale, the average difference in test scores between two such children would have been about 90 points; today it is 125 points. This is almost twice as large as the 70-point test score gap between white and black children. Family income is now a better predictor of children’s success in school than race.
The same pattern is evident in other, more tangible, measures of educational success, like college completion. In a study similar to mine, Martha J. Bailey and Susan M. Dynarski, economists at the University of Michigan, found that the proportion of students from upper-income families who earn a bachelor’s degree has increased by 18 percentage points over a 20-year period, while the completion rate of poor students has grown by only 4 points.
Read Sean F. Reardon's entire piece at the New York Times.
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