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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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 this true?
Thomas O
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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 to a hard road in the hope of cracking it. Some…
Daud
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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 improving education. The question is, are people…
Ming-Tang
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Do firstborns have a higher IQ?

I've seen number of articles telling about the fact that firstborns are more likely to have higher IQ than their sibilings. Sources: Research Finds Firstborns Gain the Higher I.Q., Study: Older Siblings Have Higher IQs, First-borns 'really do have…
Infinity
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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 Executive, etc. increases with IQ to about 133. …
Christian
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Does the gorilla, Koko, have an IQ in the range 70-95?

Koko is a western lowland gorilla kept in San Francisco. There are many claims about her IQ. For example: She was given IQ tests several times when she was younger and scored between 70 and 95, where 100 is considered normal for humans. Her carers…
Ginden
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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 conclusive evidence based answer I found this…
Luxspes
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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 generally can get similar benefits: "We have…
user4951
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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 have been unusual in some way, which could correlate…
Brian M. Hunt
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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 ("less" or "conservative") leads mostly to the same…
anon
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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育 万一未達の場合は教育費を全額返金いたします Intelligence training that guarantees an IQ over 140. In the unlikely event of not reaching 140, we reimburse all…
nic
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Is hair colour correlated with intelligence?

..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 this problem. However, the accepted answer fails to…
mindcorrosive
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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?
Bernhard Heijstek
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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, scientists have found fairly convincing evidence that…
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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 breastfeeding. Not only does breastfeeding have clear…
Sakib Arifin
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