Showing posts with label rationality. Show all posts
Showing posts with label rationality. Show all posts

Monday, March 12, 2012

Revisiting a Different World

In an earlier post, I suggested that liberals and conservatives live in two different worlds, and that conservatives, more than liberals, are lacking in epistemic rationality. That is, conservatives have a greater number of beliefs that do not correspond with objective reality. Public Policy Polling, a very credible polling organization, today reported a survey of 600 likely Republican voters in Alabama and 656 in Mississippi. The margin of error on these polls is plus or minus 4%. The main purpose was to predict the outcomes of tomorrow's primaries. Both are said to be too close to call, since the differences among the candidates are smaller than the margin of error.

What I found more interesting were the results of a couple of their throwaway questions--questions that were no doubt included simply to satisfy the pollsters' curiosity. In Alabama, 26% of Republicans said they believe in the theory of evolution, 60% do not, and 14% are not sure. In Mississippi, 22% believe in evolution, 66% don't, and 12% are not sure.

Another question that I believe measures epistemic rationality dealt with President Obama's religion. Only 12% of Mississippi Republicans believe Obama is a Christian, while 52% believe he's a Muslim, and 36% are not sure. In Alabama, 14% believe he's a Christian, 45% say he's a Muslim, and 41% are not sure.

One time, I had a conversation with a conservative student in which we were unable to reach a consensus about reality. When we finally decided to call it quits, his parting words were, "My vote cancels out yours."

Sunday, January 22, 2012

Two Different Worlds

By now, just about everyone has seen this clip of Newt Gingrich in the final South Carolina debate among the presidential candidates of the Elephant Party.



First of all, the moderator, John King, asked Gingrich the wrong question. Does he want to respond to his ex-wife? Of course not! The question should have been about the hypocrisy of carrying on this affair while leading the charge to impeach Bill Clinton and marketing himself as a family values politician. Secondly, Gingrich knows how to work a room full of Elephants: by appealing to their contempt for the news media, in this case for ABC and CNN.

On January 17, Public Policy Polling released its second annual survey of trust in the TV news media. It was a telephone survey with 700 respondents and a marging of error of + or -3.7%. For each of eight networks, participants were asked whether they trusted it, did not trust it, or were not sure. Their press release stressed that PBS had the highest overall ratings, and that Fox News was both the most and least trusted news outlet. However, as Kevin Drum of Mother Jones pointed out, the most interesting finding involves a comparison between conservatives, moderates and liberals. Liberals and moderates trusted all the networks except Fox, while conservatives trusted only Fox.

I constructed the table below by subtracting the percentage who distrusted each network from the percentage who trusted it. Thus a positive number indicates that the majority in that ideological group trusted that network, while a negative number (or shaded cell) indicates a majority distrusted it. (To make the table fit, I omitted Comedy Central and MSNBC, but they showed the same pattern as the other five non-canine networks.) The results show that conservatives differ greatly from liberals and moderates, but liberals and moderates do not differ very much. Do conservatives live in a different world from other Americans?


ABC
CBS
CNN
NBC
PBS
Fox
Very liberal
43
25
64
64
60
-57
Liberal
32
45
43
53
64
-49
Moderate
39
38
34
45
55
-27
Conservative
-44
-41
-30
-40
-11
47
Very conservative
-66
-68
-61
-66
-45
70

Cognitive psychologists have identified two types of rationality: instrumental and epistemic. Instrumental rationality refers to behaving in such a way as to maximize the chances of getting what you want, or in other words, making the choice with the highest expected utility. For example, if your goal is to make money on the stock market, do you choose stocks that increase in value? Epistemic rationality refers to how well your beliefs correspond with reality. Claiming not to “believe” in global warming or evolution is a failure of epistemic rationality. Bill Maher was talking about epistemic rationality when he quipped that Gov. Jon Huntsman—now out of the race—was the only one of the Elephant presidential candidates who believes that when an apple falls out of a tree, it hits the ground.

I certainly don't want to imply that all the other TV networks except Fox are free of errors and biases. News bias is difficult to measure, since there is usually no absolute standard of accuracy with which to compare a news story. Available research suggests that journalists, with the exception of Fox, are slightly to the left of the public on social issues, and slightly to the right of the public with respect to economics and foreign policy.

Centrism can also be a bias. One symptom of centrist bias is false balancing, in which the news media, apparently trying to be fair, claim that liberals and conservatives, Jackasses and Elephants, are equally extreme in their opinions, or routinely engage in equal amounts of deviant behavior. But if examples are given, they often show that the two sides are not really equivalent. Carrying a loaded gun to a political rally, for example, is not the same as carrying a rude sign.

For better or worse, the nightly network news represents a social consensus about what the most important events of the day were and what they mean. People who call themselves moderates find these newscasts, with the exception of Fox, to be largely trustworthy. So do liberals. By this criterion, conservatives live in an alternate universe from the one occupied by moderates and liberals.