Every summer, the news is filled with stories about summer learning loss. The warnings sound dire: two months of math learning lost for most students every summer, and two to three months of reading learning lost for low-income students, according to the National Summer Learning Association. By the ninth grade, “summer learning loss during elementary school accounts for two-thirds of the achievement gap in reading between low-income children and their middle-income peers,” the association says.

There can be no doubt about it: as American children lounge poolside, watch too much television, and play too many video games, most are forgetting what they learned in school last year, and low-income students are falling even further behind.

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It sounds plausible. But how reliable are these claims? How many of these findings can be replicated? Is summer learning loss really a thing?

About the Author:

Paul T. von Hippel is an associate professor in the LBJ School of Public Affairs at the University of Texas at Austin. The research summarized here was published in two academic articles: “Do Test Score Gaps Grow Before, During, or Between the School Years?” (with Caitlin Hamrock, in Sociological Science, 2019) and “Inequality in Reading and Math Skills Forms Mainly before Kindergarten: A Replication, and Partial Correction, of ‘Are Schools the Great Equalizer?’” (with Joe Workman and Doug Downey, in Sociology of Education, 2018).

Editor’s note: This excerpt is reposted with permission from Education Next. It can be read in its entirety here