Bradley effect

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Notion

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Science and technology

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What Wikipedia says

The Bradley effect, less commonly known as the Wilder effect, is a theory concerning observed discrepancies between voter-opinion polls and election outcomes in some United States government elections where a white and a non-white candidate run against each other.

Excerpt from the Wikipedia article “Bradley effect”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Bob Chamberlin, CC BY 4.0, via Wikimedia Commons.