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The answer, they say, is that the parties we perceive are quite different from the parties that exist. To test the theory, they conducted a survey asking people βto estimate the percentage of Democrats who are black, atheist, or agnostic, union members, and gay, lesbian or bisexual and the percentage of Republicans who are evangelical, 65 or older, Southern, and earn over $250,000 per year.β They were asking, in other words, how much people thought the composition of the parties fit the caricatures of the parties.
Misperceptions were high among everyone, but they were particularly exaggerated when people were asked to describe the other party. Democrats believed 44 percent of Republicans earned over $250,000 a year; itβs actually 2 percent. Republicans believe that 38 percent of Democrats were gay, lesbian or bisexual; the correct answer is about 6 percent. Democrats believe that more than 4 out of every ten Republicans are seniors; in truth, seniors make up about 20 percent of the GOP. Republicans believed that 46 percent of Democrats are black and 44 percent belong to a union; in reality, about 24 percent of Democrats are African American and less than 11 percent belong to a union.
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