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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Do intelligent people tend to stay up later? [duplicate]

I heard that people with high IQs stay up late. I found this article which in turn refers to this study: S. Kanazawa, K. Perina, Why night owls are more intelligent, Personality and Individual ...
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Was it illegal to discriminate on the basis of intelligence in the United States?

Paul Graham wrote the following in March 2005: One advantage startups have over established companies is that there are no discrimination laws about starting businesses. For example, I would be ...
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Is there a negative correlation between intelligence and being religious? [duplicate]

A study The relation between intelligence and religiosity: a meta-analysis and some proposed explanations indicates that there is a relationship, with an abstract: A meta-analysis of 63 studies ...
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Is 80% of childs intelligence acquired from mother? [duplicate]

Several articles on internet claim that 80% of child's intelligence is acquired from mother. however not providing any scientific publications. Is it really true? source: http://brooklynmutt.com/post/...
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Is reaction time correlated with intelligence?

The article People Getting Dumber? Human Intelligence Has Declined Since Victorian Era, Research Suggests says, As for Dr. te Nijenhuis and colleagues, they analyzed the results of 14 intelligence ...
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1answer
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Are we getting smarter? [closed]

I've asked a similar question some time ago and people mentioned the "Flynn effect". But after watching this video from James Flynn I'm having doubts about the relevance of IQ tests. In short, that ...
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1answer
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Did this study on British pupil intelligence include all ethnic groups?

http://en.wikipedia.org/wiki/British_Chinese#Education The proportion of British Chinese achieving 5 or more good GCSEs stood at 70%, where it remained the highest out of all ethnic groups in the ...
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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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How much traces lasting a million years would human civilization leave after perishing?

While there is a nice webcomic with a similar theme, I'm talking about a hopefully more reliable claim: The Science of Discworld alternates between chapters written by fantasy author Terry Pratchett ...
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Is spelling (orthography) correlated with adult intelligence?

I been told that spelling ability (good orthography) is correlated with intelligence (which is a nice way to say: if you are bad with orthography, you are stupid). So far I have been unable to find a ...
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Is the intelligence of people going down? [duplicate]

Somewhat popular idea in media (say movie "Idiocracy") and general perception of older generation is that people and society are getting dumber. It seems that even real studies show that "stupid" ...
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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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Can CT scans performed on a child's head lower his or her intelligence?

The Daily Mail reports that X-rays and CT scans performed on a child's head could lower their IQ: The study is the first to suggest that medical X-rays to the head could harm the development of the ...
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Does Lumosity increase your intelligence?

Lumosity is a popular website that claims to help you become a more intellectually capable individual. Harness your brain's neuroplasticity and train your way to a brighter life" Is it truly ...
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Does juggling increase gray matter/size of the occipito-temporal cortex?

I have been led to believe by expert testimonies that juggling may lead to an increase in brain depth and size. At the moment I am not able to draw on much evidence. If this is a myth, I would ...
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Does the “Flynn Effect” in a way discredit the notion of IQ tests? [closed]

You probably heard before of the "Flynn Effect", the phenomenon first described by James Flynn which states that every new generation has an average IQ higher than the one before and as a consequence, ...
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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 ...
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1answer
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Are intelligent people more nocturnal than people not considered intelligent?

Some sites claim that people with higher intelligence tend to go to bed later. For example: People with higher IQs are more apt to be nocturnal night-owls. Those with lower IQs tend to restrict ...
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Do non-educated people tend more to the right/conservative political wing?

This is a common prejudice in my social environment, but is it true? Are educated people more likely to vote for a social/left wing party? Examples: [1]; [2].
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Are women weak in religion and reasoning as compared to men? [duplicate]

When Prophet Muhammad compared men and women as follows in one of the hadith, which says women are weaker in reason and religious. While it is difficult to understand deficiency in religion I would ...
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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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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 sense of humor somehow related to intelligence?

I've seen a couple of documentaries where they insinuate that sense of humor and intelligence could be related. I couldn't find the documentaries on the web, but the following are some studies ...
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Is intelligence declining due to the lack of selection pressure?

I have read lately that human intelligence has already peaked and that it will slowly decline over time because humans are no longer naturally selected for intelligence (Darwin award winners aside). ...
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Does Modafinil make you smarter?

Modafinil (Wikipedia link) is a drug approved in many countries for specific medical conditions such as narcolepsy. We don't, however, have a good idea how it works. But is is one of several drugs (...
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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 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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Is there a correlation between intelligence and wearing spectacles?

Many people I know consider bespectacled individuals to be smarter than the average normal sighted person. Is there any scientific basis to this belief?
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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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Is global IQ dropping over time?

Global IQ: 1950–2050 Essentially the idea is that while smart people are getting wealthier, their birth-rate tends to drop. On the other hand poor countries, which are generally populated by less ...
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Does playing popular video games improve a child's IQ?

This article claims a study shows that the cognitive abilities of 60-77 year olds can be helped by playing two weeks of World of Warcraft. This article quotes a navy researcher as saying adults ...
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Was Einstein's brain physiologically different?

Einstein's brain has been the subject of much debate and speculation, because of his notable and exceptional contributions to our understanding of the universe. The claim exists that his brain may ...
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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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Do men show greater variance in the distribution of their IQ than women?

It is frequently claimed that men show greater variance in the distribution of their general intelligence factor (g) ("IQ") than women. Is that claim accepted by the scientific community?
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Did Asian countries top an IQ survey of 50 countries?

This article in the China Daily makes the claim that several Asian countries topped a survey of intelligence: Asians dominated the survey compiled by Austrian researchers who drew on a variety of ...
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Does LSD provide a creativity boost?

The claim is of course widely known: LSD "broadens your thinking" and makes you "more creative". The last incarnation was Steve Jobs' biography taking a swipe at Bill Gates: “He’d be a broader ...
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If children use calculators in primary school, is their learning impacted?

Others are against using calculator in lower level math teaching, saying that it makes children not to learn their basic facts, prevents students from discovering and understanding underlying ...
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Does watching TV make you stupid?

I haven't watched TV since 1969. I worked in it for decades, and knew enough not to watch it. It makes you stupid, and my colleagues in the networks agree! Some of them would point out what a verbal ...
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Are non-religious people smarter than religious people?

There are quite a few studies that confirm this, the most recent one: http://onefuriousllama.com/2011/09/11/another-study-links-intelligence-to-lack-of-religiosity/ Are non-religious people smarter ...
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Were our recent ancestors as intelligent as we are?

A good friend of mine made the following claim: If we would have a time machine and use it to gather newborns from different eras of human history and would put them in normal and nurturing ...
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Intelligence and number of children?

This wikipedia article on fertility and intelligence (citation missing from wiki article needed for proving this claim) indicates that intelligent people are less fertile. Is this correlated to the ...
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Does your choice of browser relate to your IQ

SOURCE PC World reports that a "psychometric consulting" firm called AptiQuant gave free online IQ tests to 100,000 people, and then plotted the scores against the browser on which the tests ...
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Are big ears a sign of intelligence?

Some people claim that ear size and shape is related to intelligence. For example, this writer. Has any real research been done on this?
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Are blondes dumb or is it just a sarcastic saying?

Many a times in hollywood, blondes are projected as unitellegent, stupid and dull-witted. In fact a perception around the world can be realized about the same. In friends circle, TV shows and social ...
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Can one be naturally better at computers than English or Maths?

I think everybody heard this claim, and its opposite, a million times. Students or teachers commonly speak about having talents for a particular subject or another. The subject is debated, for ...
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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 exams getting easier, or are students getting smarter?

There is an interesting trend in test scores in exams (GCSE and A-level) in the UK: they are increasing, or so the trend in the grades would tend to show. This is known as grade inflation and affects ...
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Does brain mass have any correlation to intelligence?

According to many (I cannot find a source at the moment), Albert Einstein's brain weighed less than average. It is a common belief that there is no correlation between brain mass and intelligence. Is ...
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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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Are people getting smarter or stupider in North America?

I've heard that people are complaining everyone are getting dumber because of popular culture and the Internet. I read an article in cracked that said people are actually getting smarter because of ...