Is Psychometric g a Myth? - "As an online discussion about IQ or general intelligence grows longer, the probability of someone linking to statistician Cosma Shalizi's essay g, a Statistical Myth approaches 1. Usually the link is accompanied by an assertion to the effect that Shalizi offers a definitive refutation of the concept of general mental ability, or psychometric g." [more inside]
posted by kliuless on Apr 11, 2013 - 113 comments

When I came to the US, I heard about Mensa — the high IQ society. My IQ had never been tested, so I was curious. I was told that there was a special IQ test for non-English speakers and that my fresh immigrant status and lack of English knowledge was not a problem. I signed up.
posted by Foci for Analysis on Nov 4, 2012 - 164 comments

New Republic article on James Flynn's new book Are We Getting Smarter?: Rising IQ in the Twenty-First Century "IN THE MID-’80s, the political philosopher James Flynn noticed a remarkable but puzzling trend: for the past century, average IQ scores in every industrialized nation have been steadily rising. And not just a little: nearly three points every decade. Every several years, IQ tests test have to be “re-normed” so that the average remains 100. This means that a person who scored 100 a century ago would score 70 today; a person who tested as average a century ago would today be declared mentally retarded." [more inside]
posted by bookman117 on Oct 25, 2012 - 96 comments

Parasites may affect brain function: Toxoplasmosis is a famous example. Now researchers have proposed that country-by-country differences in IQ can be explained, in part, by parasite burden.
posted by jjray on Jul 1, 2010 - 44 comments

About a month ago, a MeFi FPP on this article sparked a controversy here on the usefulness of the concepts of IQ and race in determining whether some ethnic groups can be shown to be intrinsically less intelligent than others. Now James Flynn, discoverer of the Flynn effect, has written a book, What is Intelligence?, that settles many of the issues of this controversy. In this week's New Yorker, Malcolm Gladwell summarizes Flynn's arguments succinctly in a review entitled "None of the Above: What IQ doesn't tell you about race."
posted by ubiquity on Dec 16, 2007 - 85 comments

Are you Smart or Stoopid? A quick, entertaining and (for me) reasonably challenging way to determine your level of intelligence. Be sure to post your score.
posted by JPowers on Jan 25, 2007 - 203 comments

I find my interest piqued by some of Dr Satoshi Kanazawa's ideas. Especially regarding The conformist culture of Asia. But also: The Myth of Racial Discrimination in Pay in the United States[pdf]. He works hard thinking.
posted by econous on Nov 6, 2006 - 27 comments

A high IQ is a hindrance for women wanting to get married while it is an asset for men, according to a study by four British universities.

The study found the likelihood of marriage increased by 35 per cent for boys for each 16 point increase in IQ. But for girls, there is a 40 per cent drop for each 16-point rise, according to the survey by the universities of Aberdeen, Bristol, Edinburgh and Glasgow. The study is based on the IQs of 900 men and women between their 10th and 40th birthdays. (via)
posted by airguitar on Jan 3, 2005 - 205 comments

Human Intelligence is a good site from Indiana University that looks at historical influences and current controversies surrounding the study of intelligence. Find out more about topics such as "the Mozart Effect", the theory of multiple intelligences, and the influence of birth order on intelligence, and then browse the brains behind the history of inquiry into human intellect.
posted by taz on Sep 23, 2004 - 2 comments

"Innate intelligence has to do with capability and ignorance to do with variables such as educational opportunity and personal diligence. But the conundrum remains. Is intellect important in presidents? If Americans can't solve the question definitively in the matter of John Kerry and George Bush, we damn sure ought to make an educated guess."
posted by acrobat on Aug 27, 2004 - 30 comments

2000 Election results ranked by avg statewide IQ. Shame on me for even posting this here in this slavering den of liberal fervor, but if it's true, it certainly is kinda fascinating.
posted by jonson on May 6, 2004 - 75 comments

The more you earn, the lower your IQ. That's the clear but unexpected result from the second National IQ test broadcast by the BBC. The test is still online if you are curious. The first test was discussed here. For a higher IQ, be an unemployed Irish man and drink too much.
posted by grahamwell on May 5, 2003 - 44 comments

Musicians are really smart. They have larger and more sensitive brains than non-musicians, and their collective IQ is much higher. They have 130% more grey matter in one area of their auditory cortexes. The question of how this explains Ozzy Osbourne nonwithstanding, I'll bet if you're really, really smart, you could be one of the new members of Men Without Hats. Must be very knowledgeable in midi, sequences, and sampling.
posted by iconomy on Jun 25, 2002 - 18 comments

Last night, ninety-five thousand British Internet users took part in 'Test The Nation', an IQ quiz, broadcast live on BBC television, which attempted to survey the intelligence on the national. As a simulcast it was only partially successful -- the questions appearing on television sometimes five minutes before appearing on computer, but the results from those who coped with the technology were quite interesting. Any other UK Mefites take part? The test is still available for the curious.
posted by feelinglistless on May 12, 2002 - 46 comments

Take the Wonderlic test. The Wonderlic is a 50-question IQ test administered by the National Football League to all prospective draft picks. Teams use the test results to varying degree, in part to determine the ability of athletes to learn systems and grow as a player. Interestingly, offensive tackles and centers have the highest average NFL Wonderlic scores. (The test here is a fast 15-question sample; you'll need a piece of paper to jot down your answers.)
posted by werty on Mar 1, 2002 - 31 comments

Is intelligence hereditary or environment? A new theory sees the brain as a plastic mold of potential with the more neuron connections the better [hereditary] and environment stimulation shapes the mold untill maturity. "You could present a person with an IQ of 200 with the appropriate phenomena when they are 20 years old, after the critical learning period, and they would not have the capacity to adapt their brains to the new phenomena". People of low IQ perform poorly because their brains do not adapt well to environmental stimulation.
posted by stbalbach on Jan 21, 2002 - 15 comments

Kids are smarter than ever before, AOL chat transcripts notwithstanding. It seems to me that the fact that IQ tests measure culture acquisition as much as anything else may explain a lot of this, but I wonder if there may not be something to the "visual literacy" idea: are we (as a species) building a new type of perception, or honing old cognitive tools into something which might as well be new? And, if so, where might it lead us?
posted by rushmc on Jan 16, 2001 - 11 comments