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IQ Tests Cannot Tell One's Intelligence 

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Old 12-20-2012, 10:18 AM
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IQ Tests Cannot Tell One's Intelligence

http://timesofindia.indiatimes.com/l...w/17694645.cms


he notion of measuring one's intelligence quotient or IQ by a singular, standardized test is highly misleading, a research team has concluded after conducting the largest online intelligence study on record.

The landmark study that included more than 100,000 participants was conducted by Adrian M. Owen and Adam Hampshire from Western's Brain and Mind Institute ( London, Canada) and Roger Highfield, Director of External Affairs, Science Museum Group (London, U.K).


Utilizing an online study open to anyone, anywhere in the world, the researchers asked respondents to complete 12 cognitive tests tapping memory, reasoning, attention and planning abilities, as well as a survey about their background and lifestyle habits.

The results showed that when a wide range of cognitive abilities are explored, the observed variations in performance can only be explained with at least three distinct components: short-term memory, reasoning and a verbal component.

No one component, or IQ, explained everything. Furthermore, the scientists used a brain scanning technique known as functional magnetic resonance imaging (fMRI), to show that these differences in cognitive ability map onto distinct circuits in the brain.



With so many respondents, the results also provided a wealth of new information about how factors such as age, gender and the tendency to play computer games influence our brain function.

"Regular brain training didn't help people's cognitive performance at all yet aging had a profound negative effect on both memory and reasoning abilities," said Owen, the Canada Excellence Research Chair in Cognitive Neuroscience and Imaging and senior investigator on the project.

"Intriguingly, people who regularly played computer games did perform significantly better in terms of both reasoning and short-term memory. And smokers performed poorly on the short-term memory and the verbal factors, while people who frequently suffer from anxiety performed badly on the short-term memory factor in particular," Hampshire added.

The findings were published in the journal Neuron.

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Old 12-20-2012, 04:36 PM
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Re: IQ Tests Cannot Tell One's Intelligence

That explains a lot about everything. And it took them how long to figure that out?

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