For questions about levels of abstract thought, understanding, self-awareness, communication, reasoning, learning, having emotional knowledge, retaining, planning, and problem solving, their roles in education, testing such levels, and deficiencies in these levels.

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6
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1answer
251 views

Does schizophrenia cause a loss of intelligence?

Does having schizophrenia cause a loss of intelligence (as measured by IQ tests)? How does present research comment on this connection, if it exists? Furthermore, is it possible to recover from this ...
6
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1answer
185 views

How are the questions in IQ tests formulated?

I would like to know how psychologists come up with the questions they include in an IQ test and how they know that those questions will accurately measure intelligence? How has it been proved that IQ ...
6
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0answers
128 views

Why do men have greater variance than women in mental test scores?

Hedges and Nowell (1995) write that Sex differences in central tendency, variability, and numbers of high scores on mental tests have been extensively studied. Research has not always seemed ...
5
votes
1answer
923 views

Have different mental strengths evolved in men and women?

I think that men and women are different mentally (but nonetheless equals), however this way of thinking is very hard for me to explain philosophically, so I'd like to learn about what roots this ...
5
votes
1answer
785 views

Is the decline of fluid IQ with age less severe for professors and scientists than it is for other people?

This article in Time magazine suggests that engaging in challenging mental tasks may be associated with lower rates of mental decline in older adults. The article states that: In one study, ...
5
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1answer
2k views

Does IQ affect learning speed?

Supposedly, people of higher levels of intelligence do learn faster than people of lower levels of it. But this is an awfully coarse observation, and different people can learn at drastically ...
5
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1answer
168 views

Why might a person get widely varying scores on different online IQ tests?

Online IQ tests often yield wildly varying results (say 60 - 150). These are actual values obtained by repeated measures. It is puzzling, because it's such a wide range. How can the same person be ...
5
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1answer
122 views

Does deep, slow breathing increase mental performance?

Emotional Intelligence 2.0 said that breathing deeply and slowly increases mental performance, but I couldn't find any studies that really study the claim, and the book is a self-help book, which tend ...
5
votes
2answers
78 views

Is the Flynn effect in conflict with other studies of intelligence heritablity?

Studies comparing identical and fraternal twins, or occasionally identical twins reared apart have mostly concluded that there is a pretty high heritability of IQ. These studies, in particular the ...
5
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1answer
2k views

How does raw IQ change over the lifespan at the group-level?

In the classic review of intelligence research (Intelligence: Knowns and Unknowns), Neisser et al (1996) write the following Stability. Intelligence test scores are fairly stable during ...
5
votes
1answer
491 views

What hidden latent variables could be responsible for the high correlation between WORDSUM and IQ?

WORDSUM is a measure of vocabulary ( see sample items here) where the test taker has to select which of a set of words has the most similar meaning to a target word. There's been some discussion of ...
5
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1answer
100 views

How to interpret a BBC news article on the effect of race on intelligence?

In spring 1998, Robert Plomin claimed to have discovered a gene linked with intelligence. More recently, the Human Genome Project was cautious when approaching areas implying racial differences ...
5
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1answer
1k views

What is the correlation between Grade Point Average (GPA) and intelligence?

What is an authoritative empirical estimate of the correlation between pscyhometric measures of intelligence and Grade Point Average (GPA)? What are the main factors that influence the size of the ...
5
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1answer
109 views

Learned dyslexia? adult predicament from childhood teacher´s incompetence?

I have a friend, over 30, who is convinced she cannot really read. Of course; she can read, but she struggles so much with sorting letters into words that she cannot absorb the content. Playing - say ...
5
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0answers
68 views

Can emotional IQ be learned?

Can emotional IQ be learned? This question concerns both the general population and those with lower than average emotional quotients such as individuals with Asperger's, or Autism spectrum disorder ...
5
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0answers
263 views

Does limiting mental activity during the day increase mental performance later in the day?

Is there any scientific evidence to support the idea that you only have so much cognitive energy in a given day; and if so, would the mental abilities of someone who focuses on as little as possible ...
5
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0answers
116 views

What is the neurobiological basis of Spearman general factor of intelligence?

I found here a brief intro to genetic factor of human intelligence: http://www.ncbi.nlm.nih.gov/pubmed/1036362 Also there is known that gyrus hipocampii is basis of STM which have role in general ...
4
votes
3answers
904 views

What exactly is IQ, and how to develop or improve it?

Some people are said to have exceptionally high IQ. What exactly is that supposed to mean? Is it possible to develop high IQ if one doesn't have it? If yes, then how?
4
votes
2answers
113 views

Does a more ergonomic and user friendly interface/device make the human brain work less?

There was an interesting discussion on UX.StackExchange related to washing machines and their front windows. I was very surprised that it took me like 2 minutes or so to figure out why the washing ...
4
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2answers
500 views

Duration-independent intelligence tests

Being able to measure intelligence (or the problem-solving aspect of it) quantitatively could be indispensable in fields like cognitive science or artificial intelligence. Obviously, IQ tests aren't ...
4
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1answer
4k views

Is there a correlation between EQ (EI) and IQ?

Is there a correlation, positive or negative, between emotional intelligence and IQ?
4
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1answer
71 views

Is there a relationship between body composition and intelligence?

Does being fat or thin have any significant effect on cognition? For example, I have observed some very fat people who are extremely intelligent and some very thin people that are not and vice versa. ...
4
votes
1answer
101 views

What factors affect the g factor?

Is / are there any scientific studies on factors which affect the general intelligence (g) factor? I did a Google search, but could not find any academic papers on the topic.
4
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1answer
22k views

How to calculate IQ score based on raw score and adjust for age?

I am having a hard time grasping how IQ scores are calculated. I think it has something to do with their age score ratio multiplied by 100. Say I have a test that holds 30 questions. How would I ...
4
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1answer
2k views

Does intermittent fasting increase intelligence?

A little Background: The protocol I am taking about is 16-20 hours of fasting and a 4-8 hour eating window (e.g. fasting between 6 PM and 10 AM). I have been doing IF (intermittent fasting) for 7 ...
4
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1answer
131 views

Is it possible for any arbitrary able bodied human to develop exceptional cognitive talent & genius across multiple disciplines?

Can any arbitrary [able bodied] human become a genius across multiple disciplines or at least one discipline assuming that they have some Secondary Eduction in these disciplines? For example, the ...
4
votes
1answer
181 views

Does social interaction increase intelligence?

Unless I am mistaken, I recall hearing an English teacher say that social interaction can increase IQ, but I found no sources discussing this when I searched on Google and Google Scholar for it. So, ...
4
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1answer
169 views

Does high IQ give cause to doubt an ADHD diagnosis?

My friend was diagnosed with ADHD as a kid, but her parents disagreed with such a diagnosis on the grounds that she had a high IQ which was discovered when her psychologists and psychiatrists were ...
4
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1answer
394 views

Is critical thinking associated with IQ?

I consider myself a person with reasonable intelligence. In my job, I require a lot of critical thinking. I am good at think laterally, but sometimes I feel I missed important critical evaluations of ...
4
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1answer
49 views

Can reduced cognitive load lead to some kind of mental or physical “atrophy”?

Muscles, if you don't use them, degenerate. Everyone who has had a broken leg in a cast for a few weeks and then seen the thin stick that reemerged once the cast was removed, can attest to that fact. ...
4
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1answer
37 views

What is general fluid intelligence?

I'm currently reading about executive control, a lot of papers (e.g. Kane and Engle 2002) discuss general fluid intelligence but don't explain it. What is general fluid intelligence?
4
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1answer
97 views

Sleep deprivation and task performance

Case: In case of an adult, the average adult sleep time required is 7.5 to 8 hours. Suppose the person (aged between 23-29) has slept only 6 hours, or less than the average time (7.5 to 8 hours). ...
4
votes
1answer
122 views

Is “doing everything in your head” a good proxy for intelligence?

Suppose Bob never takes notes in class and just mentally "gets" a subject. Is this ability of mentally learning a subject without actively recording the information a good proxy for intelligence?
4
votes
1answer
477 views

Dyslexia and IQ

Background Information of my questions: At the age of eight I was "diagnosed" with Dyslexia, I am now 47. I went from not being able to read and barely able to write to a college reading level in 9 ...
4
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1answer
64 views

Taking into account reliability of Raven's Matrices and Self Monitoring tests

I've results of two tests administered to university students: the 18-item true-false version of the Self-Monitoring Scale (Snyder & Gangestad, 1986); the Raven Progressive Matrices Test (John ...
4
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0answers
43 views

Are there any mental activites that can be detrimental for intelligence?

It is well known that we get better at the things we practice, but is it possible to stimulate the brain with activites in such a way that general or spesific intelligence is weakened? Also, are ...
4
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0answers
112 views

Are there any cutting edge techniques that enable to acquire foreign language at relatively fast pace?

I am aware of immersion method as well as mnemonics such as the one Daniel Tammet's Born on a Blue Day. I read that Kim Peek's lack of corpus callosum enabled his brain to absorb information faster ...
3
votes
4answers
335 views

Does the scarcity of female programmers, suggest that men are more intelligent than women?

Developing software is simultaneously artistic and scientific, which accounts for its appeal for some of the smartest and intuitive people on the planet There is a generally observable and most ...
3
votes
3answers
280 views

How did the unique features of human intelligence evolve?

I have been debating the following topic with a friend. She argues that humans do not descend from chimpanzees or orang-utans, because if we did, such animals would share the same cognitive thinking ...
3
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2answers
349 views

Can a person be brilliant even though slow at resolving problems?

Can a person be very intelligent, able to solve difficult problems if given enough time, yet really a slow thinker? Especially if nervous. Could such a slow thinking brilliant person get all the ...
3
votes
3answers
1k views

Improving Speed of Thinking

What are some ways one can improve his/her speed of thinking and reasoning ? I am looking for some easy to follow strategies that can be systematically applied. (I am presuming it can be learnt/ ...
3
votes
2answers
813 views

Can intense multitasking improve fluid intelligence/working memory?

The Dual N-Back task is the only task I'm aware of that has empirical support showing that it improves working memory. It appears to improve working memory through multitasking, although this ...
3
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2answers
518 views

Have IQ-type measures been tried for other animals?

despite the obvious difficulties of definition and measurement, and the various controversies surrounding the use of IQ-type scores in human beings, it seems unquestionable that there are significant ...
3
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2answers
156 views

Can general intelligence be understood as pattern analysis?

I have been thinking for a while about general intelligence (i.e.,not specific abilities used for particular tasks such as chess). I think that the essence of general intelligence is pattern analysis. ...
3
votes
1answer
260 views

Do Jewish people have better cognitive abilities than average population?

Jewish people are overrepresented in politics and science especially in the United States. Do they have better cognitive abilities than average population? If yes, what is the reason for this? ...
3
votes
1answer
171 views

How to interpret intelligence test scores for an individual who has taken a test multiple times in quick succession?

Specific context: A test subject took the same Raven's Standard Progressive Matrices IQ test three times and first scored 115, then 107, and finally 143. The same test was taken three times within 3 ...
3
votes
1answer
245 views

Is the price of higher intelligence and more complex behaviours more mental illness?

"Our work shows that the price of higher intelligence and more complex behaviours is more mental illness." -Professor Seth Grant Professor of Molecular Neuroscience, University of Edinburgh ...
3
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1answer
247 views

How far can we train mental calculation?

Mental calculators are people with a prodigious ability in some area of mental calculation, such as multiplying large numbers or factoring large numbers. Unfortunately I forgot where I heard it, ...
3
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1answer
40 views

Quick responses/Time & lintelligence

Is the ability to answer a given question correctly quicker a measure of that individual being more intelligent than the person who answered correctly, but slower (This based on both individuals ...
3
votes
1answer
92 views

What is “perceptual competence”?

I have no idea what perceptual competence is? Does anyone know about it? I found no information about it on the web.