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16

Intelligence Quotient is a relative score, comparing you to the current average. It is not a fixed, raw intelligence score. When current IQ tests are developed, the median raw score of the norming sample is defined as IQ 100 and scores each standard deviation (SD) up or down are defined as 15 IQ points greater or less,[2] although this was not ...


14

My general sense from reading the intelligence literature is that I would not expect there to be much of a relationship between exercise and intelligence. For example, if you read Neisser et al (1996) you can get an overview of the intelligence literature. From the review, you can get a sense of just how difficult it is to systematically increase ...


12

Literal IQ: In a literal sense, IQ is a standardised score derived from intelligence tests. Typically IQ is scaled to have a a mean of 100 and a standard deviation of 15. In that sense, it is a normative score. For children, the norm is defined relative to other children of a similar age, for adults, it is defined relative to an adult population. IQ as g: ...


12

As a general note, precision in measurement of intelligence declines as you move to more extreme levels. There is greater uncertainty in measurement in the 145 range than there is at the 100 range. Norm samples get smaller, and most measures of intelligence are designed for the normal range. Categories: You might find the article on IQ classification useful....


12

You are asking two very excellent questions. Is the decline in fluid intelligence commonly accepted as true? These days it seems generally accepted, that the trend is true. However, this hasn´t been the case a few yeas ago, e.g. see the introduction in Elsayed, Ismail, & Young (1980) for a little impression. The reason behind this is the limited ...


10

Short answer: Some traits of Asperger's are found in those with high intelligence, and vice versa. In the grander scheme of things, however, it appears that correlation does not imply causation. Longer answer: AS was first described in 1944 by Austrian physician Hans Asperger. He considered it to be a personality disorder characterized by pedantic speech ...


10

Recent studies on this topic deal with more detailed questions, that are analysed using structural equation models (Deary et al., 2006). A main goal has been the identification of specific genes. No single genes have been found until today and Sternberg (2012) also points out that the concept of heritability itself is indirect and maybe inappropriate if ...


10

The images you've linked are composites, and so probably don't contain the characteristics by which raters were able to judge IQ accurately. The original article (Kleisner, Chvátalová, & Flegr, 2014) is freely available and appears to answer your question in its abstract: Faces that are perceived as highly intelligent are rather prolonged with a ...


10

Is there any evidence of malleability of fluid intelligence? In the downward direction, definitely yes. There are many ways you can directly pull fluid intelligence downwards. Things like being exposed to much lead, suffering from iodine deficiency (especially a developing fetus during pregnancy, see e.g. (Qian et al, 2005)), or by not getting decent ...


8

The Flynn effect refers to the tendency over the last century or so for IQ scores to increase each generation by a few points. There is no link between vaccination and autism. It is pseudo-scientific myth, which has dangerous consequences for public health. see discussion here. I'm no expert in autism research, but in general, children with autism have ...


8

Shortly , a low EQ is not a sufficient condition to diagnose a mental psychiatric disorder. This is the DSM-V Proposal for the Definition of Mental/Psychiatric Disorder All these features have to be satisfied in order to diagnose a Psychopathology. Having said that, a low emotional intelligence is a risk factor to contract a Mental Disease. According to ...


7

Raven (2000) provides norms for Raven matrices for different age groups. Here is how you interpret it. Burke (1985) provide different groups norms. You can use different scales like IQ (which is very old term used in Piaget. DeVries (below) has more about it). Also there are other measures: percentiles, DQI, Z scores, etc... you have formulas to ...


7

In the US or the UK, the tests are regularly re-normed to keep the average score 100. But if you use the UK/US average as a baseline to look at IQ scores around the world, then the "average IQ" globally is closer to 88, and dropping, despite the Flynn effect (whose effect has already maxed out in many developed countries, where IQ levels are sometimes now in ...


7

Consider, a normal IQ score falls between the range 85-115 which is approximately 70% of the population (and only 15% of people have an IQ of 115 or above), while an extended average IQ range tends to encompass those between 80-119 which is "x"% of the population. In order to qualify for the International High IQ Society, one must have an IQ of 125 or above, ...


7

Yes, practice even as simple retest improves scores in matrices-like tests: Raven’s APM scores increase significantly on repeated testing without any targeted training (e.g., Bors & Vigneau, 2003; Bors & Forrin, 1995; Denney & Heidrich, 1990). Bors DA, Vigneau F. The effect of practice on Raven’s advanced progressive matrices. Learning ...


6

Intelligence refers to a general cognitive capacity, it does not refer to knowledge in specific fields of study. This means that yes, it is possible to have high intelligence but have low knowledge / performance in a specific academic area. Having said that, IQ tests are validated against academic performance - that is to say, they are adjusted so as to ...


6

Sounds to me like someone is making a logical fallacy here, though the origin of this fallacy isn't clear to me. We cannot go from 'poor academic performance', to 'not amounting to anything', to 'having a low IQ'. These are not relationships of cause and effect. The motivation to do something ('amount to something', if you will) is driven primarily by the ...


6

Short answer The recent literature shows mounting evidence for beneficial effects of music on cognitive abilities. The big 'but' in the issue is how specific those effects are and whether they will hold up in longitudinal studies. Background Great question. Your citations provided reach back to 2006 so I thought to limit this answer using recent articles ...


6

Short answer Any intelligence test will be designed for a certain target population. That target population's score is set at an index of 100 for the standard IQ test. The same test applied to people from a different cultural background, or other socioeconomic status may yield numbers that are unreliable, as they my not understand the question (albeit ...


4

Looking at google: http://web.mit.edu/newsoffice/2011/dyslexia-iq-0923.html I know several dyslexic researchers in computer science and cognitive psychology/neuroscience suffering of big difficulties with spelling for example. I think they that are arguably intelligent despite of the dyslexia ! As for the IQ tests, you should keep in mind that some modules ...


4

Although the idea that IQ only enables creativity "up to IQ 120" is widespread (and repeated in pop-psych books such as those of Gladwell etc.), large scale studies of giftedness reliably find that the IQ and creativity are associated even at the very highest-extremes of ability. IQ is linearly related to creative achievement across the range (Wai et al., ...


4

This is a really neat question. A strong predictor of cognitive ability is one's environmental enrichment, or the stimulation of the brain in its physical and social surroundings. Those with sensory deprivation often have less success with social situations and self-esteem, as well as (presumably) less sensory input coming in. The implication is that lack ...


4

Critical thinking is an ill-defined concept in the cognitive sciences, so this question most likely has as many answers as there are measures of IQ and critical thinking. An accessible introduction to the literature is available here, with the general cognitive conception of critical thinking given as follows: ... the mental activities that are typically ...


4

Regarding schizophrenia and loss of IQ: I don't know how much we can say about the 'loss' of IQ in schizophrenia patients. If anything, it appears to me that a decrease in overall IQ is augmented by the cognitive deficits associated with schizophrenia. This isn't to say that you can't increase your IQ with certain interventions, which I will touch on ...


4

General points about practice effects Intelligence tests differ in how much they are subject to practice effects. Practice effects can also be distinguished: Time between taking the test: The shorter the timeframe the more likely you will see practice related improvement. General practice on similar tests and similar items versus practice on the same set ...


4

Extraversion and IQ typically have zero correlation. In Bates and Rock (2004),we suggested that if the arousal value of the testing environment varies, this might induce a modest correlation with IQ (introverts doing best in silences, ambiverts with some noicse, and extraverts performing best under fairly loud white noise background. More basic measures like ...


4

The first question that should be asked is, do you mean cognitive ability or IQ? They are intertwined, but different. Unfortunately, I can not comment. I'm going to answer based on the question in the title. Yes. Walter Mischels work on self-control indicates that anger, a "hot" emotion led by the amygdala in the limbic system, will provoke more ...


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