The Dunning-Kruger Effect: Why the uninformed scream the loudest

Technically speaking, I'm a weekend frontpager - but here it is 8:30pm with only four posts today and Jerome busy at Netroots Nation, so I feel it's my duty to step up to the plate. ;) Cross-posted from Blue Moose Democrat.

Now here's an interesting theory that may help explain not just the town hall disruptions but the birther movement and the anti-science crowd too.

We've all seen the clips from yesterday's three most disturbing town hall meetings. Arlen Specter's has gotten a lot of play, and there were several threats of violence outside Obama's New Hampshire meeting (though fortunately everything inside went smoothly). Getting slightly less attention was Senator Claire McCaskill (D-MO), who I thought did a pretty good job of handling things.

There's another video of how McCaskill handled things after the police had to escort a protestor out of the room, but I think the money quote is from the video above: "I don't understand this rudeness... Do you all think that you're persuading people when you shout out like that?" That's a good question, and one I asked a few weeks ago about abortion protestors. How can anyone possibly think that shouting is more intellectual or effective than reasoning? "I'm sorry, you almost won the vote, but you were two decibels shy!"

A relative of mine showed me a science blog that suggests the answer is the Dunning-Kruger effect, defined by Wikipedia as

an example of cognitive bias in which "...people reach erroneous conclusions and make unfortunate choices but their incompetence robs them of the metacognitive ability to realize it". They therefore suffer an illusory superiority, rating their own ability as above average. This leads to a perverse result where people with less competence will rate their ability more highly than people with relatively more competence. It also explains why competence may weaken the projection of confidence because competent individuals falsely assume others are of equivalent understanding. "Thus, the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others."

In other words, people who can't get it think they actually get it better than everone else and people who do get it think everyone else can too. It is the affliction of those whose arguments have been completely destroyed and are left with no evidence, and yet think they won the debate anyway - like the birthers. It is also why the smart ones don't understand the failure to communicate and keep pressing. If this theory sounds overly simplistic or arrogant, it's worth pointing out that it's based on a study by two Cornell professors called "Unskilled and Unaware of it." It certainly explains a lot about the national discourse.

Tags: Arlen Specter, Barack Obama, birthers, Claire McCaskill, Cornell, Health care, New Hampshire, town halls (all tags)

Comments

12 Comments

Re: The Dunning-Kruger Effect:

Dunning-Kruger and Lake Wobegon Effects are stellar examples of how uncalibrated people's intuition really is when untempered by information.

by McGahee220 2009-08-12 05:25PM | 0 recs
Re: The Dunning-Kruger Effect:

I love GK and PHC, but can't say I've ever heard of a Lake Wobegon effect. Tell me more?

by Nathan Empsall 2009-08-12 06:51PM | 0 recs
Re: The Dunning-Kruger Effect:

Best I can do here is refer you to the wikipedia article,

http://en.wikipedia.org/wiki/Lake_Wobego n_Effect

One College Board survey asked 829,000 high school seniors to rate themselves in a number of ways. When asked to rate their own ability to "get along with others", fewer than one percent rated themselves as below average. Furthermore, sixty percent rated themselves in the top ten percent.

It relates back to the notion of illusory superiority. Good stuff.

by McGahee220 2009-08-12 07:16PM | 0 recs
Re: The Dunning-Kruger Effect:

Ah, as in all the children are above average. Got it. :)

by Nathan Empsall 2009-08-12 07:54PM | 0 recs
Good post

You pointy-headed elitist, you!

by JJE 2009-08-12 06:05PM | 0 recs
Re: The Dunning-Kruger Effect:

You know what I think?  I think having no democratic resource, they're resorting to force.  What they're doing is actually quite rational.

by Jess81 2009-08-12 07:54PM | 0 recs
miscalibration

Thus, the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others

people who do get it think everyone else can too.

Sigh. You're talking about Obama, right? As  desmoinesdem wrote in her article below...

No matter how many nice things Obama says about Grassley, Grassley will repeat Frank Luntz's talking points on health care and keep trying to move the bill to the right.

But at least there is hope, because surely the highly competent ought to be rather the likeliest to eventually realize and correct their error (maybe after they read an article on the Dunning-Kruger Effect!)

by Rob in Vermont 2009-08-12 08:01PM | 0 recs
Re: The Dunning-Kruger Effect: Why the uninformed

This is the best explanation for the phenomenon of "Joe the Plumber" that I've ever seen.  A whole mess of people stood around, looking at him on the teevee at McCain Campaign HQ and thought: "We should listen to him precisely because he's an abject idiot who doesn't know what the hell he's talking about and...who agrees with us!"

by Jay R 2009-08-12 08:07PM | 0 recs
A good read on

Decision-Making, how calibrated one is to the accuracy of their decisions, and such, is Neuroeconomics by Politser. It's so incredibly dense and probably exclusively the domain of those skilled in statistics, biology, and psychology, but it really hones in on the notion of accurate actions/decisions being necessarily subordinate and reconciled to an accurate AND INFORMED sense of <insert topic here>. In other words, calibrated policy requires calibrated diagnostics. The less accurately calibrated the diagnostics, the necessarily less accurately calibrated the hypothetical evaluation of one's answers are.

by McGahee220 2009-08-12 08:40PM | 0 recs
Re: Why the uninformed scream the loudest

There were evidently two gun-toters at Portsmouth, with one rewarded with 15 minutes of fame and a TV interview. And now Obama is heading into the heart of gun-nut country.  I'm getting bad vibes about this.

by Bob H 2009-08-13 03:40AM | 0 recs
Re: The Dunning-Kruger Effect

I suspect you may be overthinking this.  While I've seen this effect in action, mass protest arises out of a different instinct--intimidation.  Public protest is about motivation; sapping the morale of people who disagree with you and raising the morale of your natural allies.  I'll grant you Dunning-Kruger does come into play when the crazies stand up to counter-protesters, but even then the main factor is something else; you see, when people become embittered to the challenge of living in an unjust world they find righteousness, and holding tightly to one small thing they know should be true their righteousness immunizes them to all anxiety, all criticism.

by Endymion 2009-08-13 07:21AM | 0 recs
Re: The Dunning-Kruger Effect

I'm not sure how any of that refutes that those least informed and authoritative of their respective subject are most overconfident and therefore most vociferous. Dunning-Kruger is pervasive and would apply regardless of some ingroup amplification.

by McGahee220 2009-08-13 11:28AM | 0 recs

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