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.

Filter by
Sorted by
Tagged with
73
votes
4answers
20k views

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 ...
68
votes
4answers
14k views

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 ...
48
votes
1answer
10k views

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 ...
45
votes
4answers
11k views

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:...
43
votes
2answers
4k views

Is IQ hereditary? If so, to what degree?

The movie Idiocracy suggests that intelligence is hereditary; this idea has also been perpetrated by German author Thilo Sarrazin, who claims that due to the higher fertility of Islamic immigrants and ...
40
votes
3answers
3k views

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 “...
40
votes
1answer
3k views

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 ...
38
votes
2answers
2k views

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 ...
38
votes
1answer
3k views

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 ...
33
votes
1answer
32k views

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 ...
31
votes
1answer
11k views

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....
30
votes
1answer
3k views

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 ...
29
votes
4answers
6k views

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].
26
votes
2answers
18k views

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 ...
26
votes
2answers
9k views

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?
26
votes
1answer
2k views

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 ...
25
votes
1answer
20k views

Does solving Sudoku puzzles improve your mental abilities?

A lot of people I know see solving Sudoku puzzles as a way to train their minds. howtoincreasememorypower.com recommends doing a Sudoku puzzle a day to increase brain power. Researchers rank ...
25
votes
2answers
4k views

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 ...
24
votes
1answer
5k views

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 ...
24
votes
1answer
4k views

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 ...
24
votes
3answers
1k views

Do any brain training games make you smarter?

What are the benefits over just playing a normal game? Sites such as Lumosity claim they are training your brain and making you smarter using "what seems like games". Is there any scientific evidence ...
24
votes
1answer
1k views

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 ...
23
votes
3answers
8k views

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 ...
23
votes
2answers
6k views

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 ...
22
votes
1answer
2k views

Do less-intelligent people vote right-wing because they feel safe?

The always fascinating Daily Mail came out with a rather surprising article where it claims a Canadian experiment, or review, concluded that people with less-than-average childhood intelligence tend ...
22
votes
1answer
7k views

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 ...
22
votes
1answer
5k views

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 ...
22
votes
1answer
915 views

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-...
20
votes
3answers
2k views

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 ...
19
votes
1answer
2k views

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?
19
votes
2answers
2k views

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 (...
19
votes
2answers
11k views

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....
19
votes
1answer
5k views

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 ...
18
votes
2answers
1k views

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 ...
18
votes
1answer
3k views

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 ...
18
votes
1answer
1k views

Are people who love inspirational quotes less intelligent?

An article in the Daily Beast claims the following: A new study finds that people who love bullshit inspirational quotes have lower intelligence and more "conspiratorial ideations". Life ...
18
votes
1answer
3k views

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 ...
17
votes
0answers
1k views

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, ...
16
votes
2answers
2k views

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 ...
16
votes
1answer
2k views

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 ...
16
votes
3answers
1k views

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: ...
15
votes
2answers
5k views

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 ...
15
votes
1answer
897 views

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 ...
15
votes
1answer
3k views

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 ...
14
votes
1answer
1k views

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 ...
14
votes
1answer
2k views

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). ...
14
votes
1answer
2k views

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 ...
13
votes
1answer
1k views

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. ...
13
votes
1answer
760 views

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, ...
13
votes
1answer
3k views

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 ...