Questions tagged [intelligence]

Intelligence has been defined in many different ways such as in terms of one's capacity for logic, abstract thought, understanding, self-awareness, communication, learning, emotional knowledge, memory, planning, creativity and problem solving.

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Is this IQ map valid? [duplicate]

I often see this map on the internet, but I have some doubt about its correctness. If it is a valid map, then most Africans would qualify for the intellectual disability sport classification and rule ...
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Do Ashkenazi Jews have the highest IQ in the world? [duplicate]

It is often claimed that Ashkenazi Jews in the U.S. and the UK are the smartest ethnic group in the world: http://www.sciencedirect.com/science/article/pii/S016028960600033X http://www.sciencedirect....
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Are Ashkenazi Jews smarter?

I just received an email entitled "Why are Jews So Smart". You can read an article here. I also found a similar article in New York Magazine. Did Jewish intelligence evolve in tandem with Jewish ...
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Are vegetarians more intelligent?

In a post titled Why Vegetarians Are More Intelligent than Meat Eaters, evolutionary psychologist Satoshi Kanazawa claims: Among the British respondents in the National Child Development Study, ...
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Do Australian Aboriginal people have low intelligence and sexual control?

Margaret Sanger wrote in What Every Girl Should Know: Sexual Impulses--Part II New York Call 29 December 1912 and also in her 1916 What Every Girl Should Know at page 47 and a 1920 version and in ...
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Does the US Armed Forces refuse to recruit anyone with an IQ less than 83?

In this video, Jordan Peterson claims the following. You can't induct someone into the Armed Forces in the US if they have an IQ of less than 83. He claims that the armed forces needs an accurate ...
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Is low emotional intelligence associated with right-wing and prejudiced attitudes?

Accordiing to Diply, Researchers in Belgium have linked a lack of emotional intelligence with right-wing political views, reports PsyPost. The study, published in Emotion, found that those who ...
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Are IQ tests reliable?

Some of the more common types of IQ tests are: Stanford-Binet Intelligence Scale, Fifth Edition (SBIS-V) (Ages 2–90+)An update of the SB-IV. In addition to providing a Full Scale score, it ...
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Does Chess ELO correlate with IQ?

Does the chess ELO rating of players (who have trained/played approximately the same amount of time) correlate positively with IQ? A usual claim is 'IQ and chess ELO ratings don't correlate', a view ...
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Did the average IQ score in France decline in recent decades?

We all know about the Flynn effect, that states that it has been the case that in the recent past the IQ scores in developed countries have been steadily increasing. The reasons seem to be related ...
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Are fussy babies more intelligent?

When I talk about my fussy baby, many people tell me half-jokingly that fussy babies are on average more intelligent than "easy" babies. The idea is not unusual. See for example here: In fact, ...
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Does IQ testing show that blacks on average score worse than whites?

James Watson Nobel Prize winner for his discovery of the structure of DNA made the following claim in a 2007 Sunday Times interview: "[I am] inherently gloomy about the prospect of Africa” because “...
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Do these five football players have exceptionally high IQs?

This Sokkaa.com article is one of many claiming that these handful of football players have exceptionally high IQs. Most of the football players in the world are evaluated based on physical health, ...
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Drop in IQ due to immigration?

An alt-right web site, "Red Ice" (apparently belonging to Henrik Palmgren), proposes that there's a nearly worldwide decrease in IQ due to immigration. The Red Ice piece apparently originated from unz....
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Do the Irish have on average a 8 point lower IQ then the British?

The website Brainstats lists IQs for different countries and lists 92 for Ireland while it lists 100 for the United Kingdom. Those numbers are surprising to me. Are they backed by good evidence?
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Does North Korea have the third highest IQ?

In the book IQ and the wealth of nations, the authors Lynn & Vanhanen published a list of measured average IQs for 81 countries (Table 6.1, base-lined on the UK), and another longer list (Table 6....
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Do Japanese crows use traffic to crack nutshells?

In a BBC article, its contended that: In a Japanese city, carrion crows have discovered how to eat nuts that they usually find too hard to tackle. One method is to drop the nuts from height on ...
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Will koalas eat pre-plucked eucalyptus leaves?

Various sources online (including a frequent copy-pasta disparaging the animal) claim that koalas will not recognize eucalyptus leaves as food if they are cleanly laid out on a table in front of them, ...
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Is the Wonderlic test cross validated by any other test or data? [closed]

In a quite famous lecture Jordan Peterson lists what IQ you need to work in certain professions, based on the Wonderlic test. Are there other sources to these claims than Wonderlic that gives similar ...
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Does long-term marijuana use lead to a significant drop in IQ?

This article claims that marijuana (cannabis) is linked to a drop in IQ. Specifically: Participants who used cannabis heavily in their teens and continued through adulthood showed a significant ...
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Do day-care centres lower the IQ of children?

Toni Bortoluzzi, a former Swiss politician, has recently claimed that the more time a child spends in "nursery" (a.k.a. crèche or day-care centres), the lower their IQ will be in their pre-teen or ...
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Is this quote correctly attributed to Einstein?

Poor Albert Einstein gets attributed many quotes he never uttered. I have a feeling, this is one of them, because I couldn't find a proper citation. Intelligence is not the ability to store ...
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Are people with a high IQ not allowed to become police officers in New London?

This 2000 ABC News report says: A man whose bid to become a police officer was rejected after he scored too high on an intelligence test has lost an appeal in his federal lawsuit against the city. ...
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Why aren't we using AI to inform our militaries? [closed]

I came across this article that said AI was almost if not as good as humans in team player games like DOTA. Now DOTA has landscapes, multiple players, different abilities etc. So that immediately set ...
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Does James Woods have an IQ of 180?

An article claimed that the Actor James Woods has an IQ of 180: Woods aced his SATs, got into MIT (but dropped out to pursue acting) and has a reported IQ of 180. After doing some research, I ...
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Do people with centralist political views have a higher IQ then those with extreme political views? [closed]

This article claims that those with centralist political affiliation have a higher IQ then those with more extreme political views. I've already inspected the original study linked, it is ...
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Is breastfeeding associated with a higher IQ?

In 2015, there were two conflicting studies about this subject. CNN reported in March, 2015: "Breast is best" -- you could call it a mantra of sorts that sums up much of today's research on ...
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Did Christopher Langan learn to speak when he was only 6 months old?

According to this site and many others, Christopher Langan belongs among people with the highest IQ on earth. His IQ is around 195. They also claim: Longan learned to speak when he was only 6 ...
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Does the average Ivy League student have an IQ of 145?

Psychology Professor Dr. Jordan B. Peterson gave a talk in March 2017 where he said (in the first minute of the video): If you go back and look at the records at Harvard, for example, in the early ...
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Are smarter people more likely to be happy?

The BBC published an article arguing: People with lower intelligence are more likely to be unhappy than their brighter colleagues Is that an accurate description of what we know about the ...
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Has lower IQ been linked to Racism? [duplicate]

This article claims that a study links lower IQ with conservatism and racism. It specifically claims that low IQ makes one more likely to be conservative which, in turn, makes one more likely to be ...
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Has the U.S. Army been conducting IQ tests on their recruits, unintentionally discovering a racial hierarchy of intelligence?

Dave Rubin's interview with Stefan Molyneux on race and IQ in this video talks about how the U.S. Army have been giving IQ tests for about 100 years to measure the intelligence of recruits and find ...
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Is self-discipline more important than IQ in predicting academic performance?

There is one highly cited (>1K citations in Google Scholar) study titled "Self-discipline outdoes IQ in predicting academic performance of adolescents", and quoting from its abstract: Self-...
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Do long-time students at this particular school have an average IQ of 152.6?

This kindergarten guarantees that your child will reach IQ 140: http://toe-academy.jp/ IQ140以上を保証する託児型知能教&#...
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Does meditation increase IQ?

According to this 2016 Inc magazine article Now, studies show that there is something you can do to dramatically improve your fluid intelligence as well as your overall IQ: meditate. That's ...
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Are liberal/left-wing people more intelligent than conservative/right-wing people?

A quick DuckDuckGo search on "are liberal people more intelligent" or "are left wing people more intelligent" leads to many blogs/articles claiming that they are (same search on the opposite claim ("...
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Does having more women in a group increase its collective intelligence?

Various reputable media outlets have written articles down through the years to the effect that the higher the ratio of women in a group, the higher its collective intelligence. Examples online: ...
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Are humans getting dumber? [duplicate]

According to many posts on the internet, humans are getting dumber. For example: People Getting Dumber? Human Intelligence Has Declined Since Victorian Era, Research Suggests Our technology ...
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Does extremely high intelligence correlate with poorer social skills?

The Psychology.Wikia page Correlation between intelligence and social deficiency states: Abnormally high intelligence, 3 or more standard deviations above the mean, tends to correlate strongly with ...
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Does consuming fluoridated water reduce IQ?

Related: Is fluoride in water an industry waste product? Is water fluoridation harmful? Dr. Mercola is at it again with a new article: 25 Studies Prove This Reduces Your IQ. The Fluoride Action ...
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Are there large scale studies investigating relationship between IQ and autism spectrum disorders (especially Aspergers)?

There's a lately-somewhat-widely held belief that there's a strong correlation (and to a certain extent, a fairly obvious causation) between Asperger's syndrome (or Autism spectrum disorders in ...
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Are there more people with genius IQs living in China than there are people total in the U.S.?

This claim was made popular by being said in the movie The Social Network. It exactly says: Did you know there are more people with genius IQs living in China than there are people of any kind ...
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Evidence for and against (verbal-IQ-based) Smart Fraction Theory

Currently Smart Fraction Theory is subject of some discussion among the economists. The theory holds that the wealth of the country is heavily impacted by the fraction of the population that has IQ ...
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Are men smarter than women?

I recently stumbled across the following article: Sorry, men ARE more brainy than women (and more stupid too!) It's a simple scientific fact, says one of Britain's top dons, in which the author claims:...
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Is hair colour correlated with intelligence? [closed]

..for some commonly agreed-upon, objective, quantitative, non-discriminatory intelligence criterion. Before you rush to close this as a duplicate, yes, I am aware of this other question that treats ...
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Does the probability of entering and remaining in an intellectually elite profession peak at an IQ of 133 and falls with rising IQ?

Michael W. Ferguson writes in The Inappropriately Excluded: The probability of entering and remaining in an intellectually elite profession such as Physician, Judge, Professor, Scientist, Corporate ...
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Do the mother's genes almost exclusively determine the sons' intelligence?

According to this paper: Intelligence and the X chromosome by Gillian Turner, published by The Lancet (a highly regarded medical journal) in 1996, the X chromosome is dominantly responsible for coding ...
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Is it true that a male's intelligence is solely affected by genes inherited from the mother? [duplicate]

Refer to an Independent article ( circa 1996), "Brainy sons owe intelligence to their mothers" Intelligent men owe their brains to their mothers, according to research published today in The ...
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Did the term “meritocracy” originate in a dystopian satire?

When Michael Young, a British sociologist, coined the term meritocracy in 1958, it was in a dystopian satire. (source: "The War on Stupid People"@The Atlantic) The satire mentioned was by Michael ...
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Are mixed-blood children smarter than their non mixed-blood parents?

I have heard and read on the Internet the disputed claim that mixed blood* children are smarter than their (non-mixed blood) parents. The general idea of "hybrid vigour" is known as heterosis and ...