Outliers: The Story of Success · chapter 9 · id outliers-c9-06-paul-von-hippels-2019-research
“Paul von Hippel's 2019 research found he could not replicate the classic summer learning loss findings using modern assessments, and concluded that most achievement gaps are in place before kindergarten rather than widening during summers.”
VERIFIEDconfidence: high⚠ extracted by pipeline, re-audit pending
Receipts
von Hippel (2019), Education Next: Is Summer Learning Loss Real?source alive
I used to be a big believer in summer learning loss, but my belief has been shaken. When I reviewed the seminal research from the 1980s, I found serious issues related to how achievement tests were written.
Brookings Institution: Is summer learning loss real?source alive
Most achievement gaps are in place before age 5. By the time kids enter kindergarten, they've already fallen into achievement groups they're likely to remain in throughout their school years.
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