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.”

Does the U.S. military have a minimum IQ requirement for entry?

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Psychologist Linda Gottfredson in her 1997 article titled, “Why g Matters: The Complexity of Everyday Life” (Intelligence 24(1) p. 90) stated: Minimum enlistment standards since World War II have generally been higher than the 10th percentile, and closer to what they are today for the different services: the 16th percentile on the Armed Services Vocational …

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Are IQ tests themselves compliant with the scientific method?

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The IQ tests, such as the Raven’s Progressive Matrices or the Wechsler tests that include measures of verbal comprehension, perceptional reasoning, working memory, and processing speed, have been administered to large numbers of randomly selected people. From this sampling the distribution of scores is mapped onto a normal distribution with mean IQ equal to 100 …

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How long would it take for an average IQ person to prove the Poincare conjecture?

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It is unlikely that anyone of average IQ could solve the Poincaré conjecture. Before attempting a solution, a person would have to invest years of study to acquire the background necessary to understand what’s involved. Then a great deal of abstract thinking, involving very high-order thinking skills would be required. The mathematicians, Freedman, Smale, and …

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I have made many foolish life mistakes over the years. Do you think that high IQ individuals tend to make less life devastating mistakes than low to average IQ individuals, in general?

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As you have probably seen throughout your life, everyone makes mistakes, but those of different levels of intelligence tend to make different kinds of mistakes. Based only on my personal observations, those in the lower levels of intelligence are more likely to make mistakes related to health issues, such as proper diet, adequate exercise and …

I have made many foolish life mistakes over the years. Do you think that high IQ individuals tend to make less life devastating mistakes than low to average IQ individuals, in general? Read More »

If someone is good at math, does that mean that he/she is intelligent?

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The short answer is “yes”, if your talking about being good at advanced mathematics. (A person who is good at the executing the algorithms of arithmetic may or may not be highly intelligent. Success at the more sophisticated forms of mathematics would be needed to confirm high intelligence.) In our technological society, people who excel …

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Why do hard sciences correlate with a higher IQ compared to soft sciences? Since soft sciences are more complicated, wouldn’t it be the reverse?

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You raise a very interesting question. In the process of obtaining doctorates in both mathematics and the social sciences, I’ve lived in these two worlds and I think I can speak impartially about both. The lure of pure mathematics and theoretical physics is that they contain deep problems that are self-contained and require prolonged abstract …

Why do hard sciences correlate with a higher IQ compared to soft sciences? Since soft sciences are more complicated, wouldn’t it be the reverse? Read More »

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