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"All people are born alike—except Republicans and Democrats," quipped Groucho Marx, and in fact it turns out that personality differences between liberals and conservatives are evident in early childhood. In 1969, Berkeley professors Jack and Jeanne Block embarked on a study of childhood personality, asking nursery school teachers to rate children's temperaments. They weren't even thinking about political orientation.
Twenty years later, they decided to compare the subjects' childhood personalities with their political preferences as adults. They found arresting patterns.As kids, liberals had developed close relationships with peers and were rated by their teachers as self-reliant, energetic, impulsive, and resilient. People who were conservative at age 23 had been described by their teachers as easily victimized, easily offended, indecisive, fearful, rigid, inhibited, and vulnerable at age 3. The reason for the difference, the Blocks hypothesized, was that insecure kids most needed the reassurance of tradition and authority, and they found it in conservative politics.
The most comprehensive review of personality and political orientation to date is a 2003 meta-analysis of 88 prior studies involving 22,000 participants. The researchers—John Jost of NYU, Arie Kruglanski of the University of Maryland, and Jack Glaser and Frank Sulloway of Berkeley—found that conservatives have a greater desire to reach a decision quickly and stick to it, and are higher on conscientiousness, which includes neatness, orderliness, duty, and rule-following. Liberals are higher on openness, which includes intellectual curiosity, excitement-seeking, novelty, creativity for its own sake, and a craving for stimulation like travel, color, art, music, and literature.
The study's authors also concluded that conservatives have less tolerance for ambiguity, a trait they say is exemplified when George Bush says things like, "Look, my job isn't to try to nuance. My job is to tell people what I think," and "I'm the decider." Those who think the world is highly dangerous and those with the greatest fear of death are the most likely to be conservative.
Liberals, on the other hand, are "more likely to see gray areas and reconcile seemingly conflicting information," says Jost. As a result, liberals like John Kerry, who see many sides to every issue, are portrayed as flip-floppers. "Whatever the cause, Bush and Kerry exemplify the cognitive styles we see in the research," says Jack Glaser, one of the study's authors, "Bush in appearing more rigid in his thinking and intolerant of uncertainty and ambiguity, and Kerry in appearing more open to ambiguity and to considering alternative positions."
Jost's meta-analysis sparked furious controversy. The House Republican Study Committee complained that the study's authors had received federal funds. George Will satirized it in his Washington Post column, and The National Review called it the "Conservatives Are Crazy" study. Jost and his colleagues point to the study's rigorous methodology. The study used political orientation as a dependent variable, meaning that where subjects fall on the political scale is computed from their own answers about whether they're liberal or conservative. Psychologists then compare factors such as fear of death and openness to new experiences, and seek statistically significant correlations. The findings are quintessentially empirical and difficult to dismiss as false.
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The reason thoughts of death make people more conservative, Jost says, is that they awaken a deep desire to see the world as fair and just, to believe that people get what they deserve, and to accept the existing social order as valid, rather than in need of change. When these natural desires are primed by thoughts of death and a barrage of mortal fear, people gravitate toward conservatism because it's more certain about the answers it provides—right vs. wrong, good vs. evil, us vs. them—and because conservative leaders are more likely to advocate a return to traditional values, allowing people to stick with what's familiar and known. "Conservatism is a more black and white ideology than liberalism," explains Jost. "It emphasizes tradition and authority, which are reassuring during periods of threat."
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The solution, then, is remarkably simple. The effects of psychological terror on political decision making can be eliminated just by asking people to think rationally. Simply reminding us to use our heads, it turns out, can be enough to make us do it.
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http://www.psychologytoday.com/articles/index.php?term=20061222-000001&page=1