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Opening school to everybody necessarily made average measured performance look worse, because the students who used to be excluded are now in the data.

Drawn from what Freddie deBoer said

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What Freddie deBoer actually said

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  1. Freddie deBoer

    Writer with a PhD in English who taught writing for years

    But if you know anything about my obsession with selection bias, you can predict the outcome: when you expand access from a population that excludes more students to one that excludes fewer, you’re very likely to see declining performance.

    Where this was said

    ↗What People Want From Our Schools Has Never Been Accomplished, Anywhere, Everfreddiedeboer.substack.com

    All 3 korrents from this piecethis one is 1st

Added to korrents 12 Mar 2026 · How quotes work · Something wrong? Tell us

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