American Government / Unit 4 Gov 173 short lesson, about 20 seconds
The Bradley Effect
Captions available
The idea
The Bradley effect is a gap between poll and election results produced by voters giving a socially desirable poll response rather than a true one.
In practice
The name comes from a 1982 California governor's race: polls favored Tom Bradley; he lost.
Where people slip
Respondents can mislead the measurement — polls record answers, not hearts.
Your place on the trail
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