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ScienceBlog.com
scienceblog.com > n-the-hawthorne-effect-is-named-after-a-pattern-in-1920s-factory-lighting-data-that-nobody-checked-against-the-records-for-eighty-years-when-two-economists-finally-found-the-originals

The Hawthorne effect is named after a pattern in 1920s factory lighting data that nobody checked against the records for eighty years — when two economists finally found the originals, the famous result was not in them

2+ week, 2+ day ago   (190+ words) A foundational principle of modern management rests on factory data that was never actually verified—until economists finally checked the archives and found something entirely different. By The Long View Published August 28, 2026 · How we edit That idea, that people alter…...

ScienceBlog.com
scienceblog.com > g-a-divorce-prediction-equation-was-90-percent-accurate-on-the-data-it-was-built-from-but-when-it-flagged-a-couple-as-heading-for-divorce-in-a-fresh-sample-it-was-right-only-29-percent-of-the-time-whi

A divorce-prediction equation was 90 percent accurate on the data it was built from, but when it flagged a couple as heading for divorce in a fresh sample it was right only 29 percent of the time, which is the trouble with rules like these

4+ week, 1+ day ago   (887+ words) A breakthrough divorce prediction model lost its power in the real world, revealing how statistical success in the lab can mask failure where it counts. By Science Blog Editorial Team · Edited by Graeme Brown Published August 16, 2026 · How we edit The…...

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