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Today I Learned@lemmy.worldEnglish · 1 year ago

TIL The Goodhart's Law: Any observed statistical regularity will tend to collapse once pressure is placed upon it for control purposes.

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TIL The Goodhart's Law: Any observed statistical regularity will tend to collapse once pressure is placed upon it for control purposes.

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Today I Learned@lemmy.worldEnglish · 1 year ago

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Here is the Wikipedia link.

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1 year ago
Alternative (and generally easier to understand) formulation: Once a measure becomes a target, it ceases to be a good measure.

See: grades, GDP, workplace metrics…

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