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{{a|devil|}}[[Simpson’s paradox]] is a statistical phenomenon where a trend that is apparent appears in several groups of related data, when viewed in isolation, disappears or reverses when the groups are combined. | {{a|devil|{{image|simpson paradox|jpg|Simpson’s paradox beautifully illustrated by [https://twitter.com/infowetrust/status/984536880199876608 @infowetrust on Twitter] yesterday.}}}}[[Simpson’s paradox]] is a statistical phenomenon where a trend that is apparent appears in several groups of related data, when viewed in isolation, disappears or reverses when the groups are combined. | ||
It plays particular havoc with social scientists when they try to draw [[causation|causal]] inferences — or moral imperatives — from data they have gathered with the careful intention of illustrating their own precious hypothesis. | It plays particular havoc with social scientists when they try to draw [[causation|causal]] inferences — or moral imperatives — from data they have gathered with the careful intention of illustrating their own precious hypothesis. |