Brendan Kelly Ph.D.

Brendan Kelly is Professor Emeritus at the University of Toronto. He is author of over 50 books including the recent "Intelligence, IQ & Perception", and "Intelligence: Where we Were, Where we Are & Where we’re Going." He holds two doctorate degrees: a Ph.D. in Mathematics (Number Theory) from U. of T. and an Ed.D. in Computer Applications from the Ontario Institute for Studies in Education, and he curates his site on Quora titled, “IQ & Intelligence.”

Why do some people with super high iq seem to do dumb things and lack common sense?

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People who have a high IQ are usually aware that they learn more quickly than others. They are often very successful in school, and faster than others in mastering cognitive tasks. Through these experiences, they acquire confidence in their ability to think independent of others. This enables them to escape from accepted beliefs and “think …

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How do you know if you’re a genius or just highly intelligent?

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High intelligence is probably a prerequisite for genius, especially the kind of genius that is expressed in abstract fields like mathematics, physics and the other sciences, because measures of intelligence are highly correlated with performance in these fields. In the arts, high intelligence may be less important than a special creativity, skill or knowledge. Shakespeare’s …

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What is the reason why many intelligent people are afraid of their IQ scores?

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Intelligence is at a premium in fields that demand high cognitive skills. For many highly intelligent people, the existence of others who might be even more intelligent poses a threat to their supremacy. An example of the anguish experienced by those in the top intellectual echelon was captured in the 1997 movie Good Will Hunting. When …

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How many people who get high grades are merely hard-working rather than gifted?

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Intelligence, as measured by IQ tests is distributed throughout the human population like height and many other physical characteristics. Most men have a height that deviates a small amount from the average adult male height. In the US, the average male height is 5′9.5″. This means that 50% of American males are at or below …

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Are the highly intelligent sometimes naïve about life in general?

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Highly intelligent people often immerse themselves so deeply into their research that they spend little time with people outside their domain, thereby limiting their exposure to the world at large. For example, those who have grown up in protected environments, without exposure to bullies and aggressive people, sometimes become pacifists, believing that a refusal to …

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What is the difference between a non-significant correlation and a small correlation?

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The short answer to your question is the following: If there is a non-significant correlation between two variables, it means that they are essentially independent, i.e., knowing the value of one variable does not provide any information about the other variable. For example, knowing the height of an adult does not provide any information about …

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Who suffers the most difficulties: the intellectually-challenged or the gifted?

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People at opposite ends of the intelligence spectrum suffer difficulties that come from their distance from normality. The world is designed for people of normal or average IQ. The graph below shows that those of IQ less than 85 constitute only 16% of the population as do those of IQ greater than 115. Both groups …

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