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.”

Do scientists believe they are more intelligent than others due to their understanding of nature and other people?

The sciences, and especially the natural sciences, demand a high mental discipline that is developed during a person’s early adult years. Most people who take on this challenge are emboldened by their early success in academics and on their self-perception as an intelligent person. Who would venture into the study of advanced calculus, inferential statistics …

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Can a person possess both high intelligence and charisma simultaneously, or do these traits contradict each other in some way?

The answer to this question depends to a large extent on how we characterize “charisma.” The term came from the ancient Greek word, χάρισμα meaning “a gift of grace” and was perceived to be a power bestowed by the gods. In the modern era, the term is used to describe someone who radiates a positive …

Can a person possess both high intelligence and charisma simultaneously, or do these traits contradict each other in some way? Read More »

How is the brain able to generalize knowledge and form compact concepts? While there are many trees, we all get the general concept of what a tree is, and could draw a rough sketch on command.

At the microcosmic level of brain processing, we know very little of how the brain develops conceptual understanding, although we know something about how memories and vocabulary are recorded. So, I’ll begin with what we do know and move into what we do not know, but the discussion will be at the macrocosmic rather than …

How is the brain able to generalize knowledge and form compact concepts? While there are many trees, we all get the general concept of what a tree is, and could draw a rough sketch on command. Read More »

What made Einstein a genius? What knowledge did he possess that allowed him to Develop his Theory of Relativity and other groundbreaking ideas?

Perhaps, the best description of the difference between high intelligence and genius was captured by philosopher, Arthur Schopenhauer in his famous quote, “Talent hits a target no one else can hit; genius hits a target no one else can see.” Einstein’s theories, for the most part, did not build upon previous theories in the evolutionary …

What made Einstein a genius? What knowledge did he possess that allowed him to Develop his Theory of Relativity and other groundbreaking ideas? Read More »

Is there a correlation between an individual’s IQ score and their academic achievement on tests such as the SAT, ACT, and GRE?

In recent years, some colleges and universities dropped the use of the SAT/ACT tests as part of their admissions program. In some cases, this was a decision based on ideology and in other cases, such as the Covid-19 pandemic, it was an attempt to reduce exposure to viral infection. Recently, some high-profile universities such as …

Is there a correlation between an individual’s IQ score and their academic achievement on tests such as the SAT, ACT, and GRE? Read More »

Which has a greater impact: education or intelligence/ability/aptitude (IQ)?

Asking, “Which is more important, education or intelligence?”, is somewhat like asking “Which wheels on a car are more important, the front wheels or the back wheels?” The answer is that they are both vital and they work together as vital components in achieving goals. Intelligence, without some degree of education, is merely unharnessed potential, …

Which has a greater impact: education or intelligence/ability/aptitude (IQ)? Read More »

How can you effectively explain a concept to someone with varying levels of intelligence and help them to understand your perspective?

How you explain a complex concept to someone depends vitally on two factors: that person’s level of knowledge on the concept and their receptiveness to an explanation. If the someone to whom you are explaining a concept is ready and eager to learn from you, it is necessary to assess only their level of knowledge …

How can you effectively explain a concept to someone with varying levels of intelligence and help them to understand your perspective? Read More »

Do you agree with Mark Z. Barabak that even the best polls are nothing more than an educated guess?

The 41st presidential election featured the heavily favored Republican candidate, Governor Thomas E. Dewey, against the underdog, Harry S. Truman, the Democratic candidate. Three of the top polls, including the Gallop Poll, predicted that Dewey would be the winner by a significant margin. The polls were so trusted that the Chicago Daily Tribune printed its …

Do you agree with Mark Z. Barabak that even the best polls are nothing more than an educated guess? Read More »

How does the correlation between high IQ and social difficulties impact the development of groundbreaking technologies or scientific discoveries?

Jessica, this is an interesting question and it’s difficult to answer with any degree of precision because so many groundbreaking technologies or scientific discoveries are made by people of high IQ who also have some degree of social difficulty. In the past few centuries, scientific breakthroughs have come from renegades who “march to the tune …

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How does having an IQ <100 compare to having an IQ >160 in terms of lifestyle and experiences?

It would seem that someone of IQ > 160 would have a much greater likelihood of having lifestyle options not available to someone of IQ < 100, and yet within each group there are people whose lifestyles range from miserable to highly rewarding. If we were able to measure the quality of lifestyle and experiences …

How does having an IQ <100 compare to having an IQ >160 in terms of lifestyle and experiences? Read More »

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