Much of Achievement Gap Traced to 'Summer Slide'

Education Week
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It’s been a truism for decades that students’ learning slips during the summer, and that low-income children fall farther behind than their classmates, but no one had connected the longitudinal data dots to show just what the cumulative consequences of the summer slide might be. Until now.

A recent study by sociology professor Karl L. Alexander and colleagues at Johns Hopkins University in Baltimore concludes that two-thirds of the reading achievement gap between 9th graders of low and high socioeconomic standing in Baltimore public schools can be traced to what they learned—or failed to learn—over their childhood summers.

The study, which tracked data from about 325 Baltimore students from 1st grade to age 22, points out that various characteristics that depend heavily on reading ability—such as students’ curriculum track in high school, their risk of dropping out, and their probability of pursuing higher education and landing higher-paying jobs—all diverge widely according to socioeconomic levels.
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