Entries in Intelligence (4)


Schooling Boosts IQ, Study Suggests

Hemera/Thinkstock(OSLO, Norway) -- The more time you spend in school the smarter you get, according to a Norwegian study.

Researchers at the University of Oslo found that people who had more years of education under their belts had higher IQs. Scientists calculated a nearly four-point increase in IQ for every extra year of schooling -- suggesting that education, not just genetics, can have an impact on intelligence.

Researchers got their results by reviewing the records of men who had reached the age of 30 several years after their extra education, suggesting that the effect is long-lasting.

Copyright 2011 ABC News Radio


Genetics Tied to Intelligence  

Comstock/Thinkstock(NEW YORK) -- Nearly 50 percent of human intelligence can be explained by genetics, according to a new study.

In a genome-wide analysis of 3,511 unrelated adults, researchers scanned data on nearly 550,000 single nucleotide polymorphisms (SNPs) and found that small contributions from a variety of genes may explain intelligence.

HealthDay reports that the study, that appears in the Aug. 12 issue of Molecular Psychiatry, tested participants for two types of intelligence: knowledge and problem solving.

Researchers analyzed SNPs -- one-letter changes in a DNA sequence that account for 90 percent of human genetic variations, according to the Human Genome Project.

Scientists found that 40 to 50 percent of gene variations relating to knowledge and problem solving came from genetic differences

While the research indicates genes influence intelligence, researchers caution using genetics solely to determine intellect, as both nature and nurture play a role.

Research was conducted by Ian Deary, Ph.D., MBChB, professor of differential psychology at University of Edinburgh in Edinburgh, Scotland, and by Peter Visscher, Ph.D., a professor of statistical genetics at Queensland’s Institute of Medical Research in Brisbane, Australia.

Copyright 2011 ABC News Radio


What's the Key to a High IQ? It May Be More Than You Think

Stockbyte/Thinkstock(PHILADELPHIA) -- A high IQ score is a result of two factors, according to a new study by researchers at the University of Pennsylvania: high intelligence and a high motivation to take tests.

A low IQ, the study’s authors found, could result from a lack of any of the two factors.

Researchers concluded that relying on IQ scores as a measure of intelligence alone could be misleading.

Their findings were published in the Proceedings of the National Academy of Sciences.

Copyright 2011 ABC News Radio


Study: Beautiful People Have Higher IQs 

Photo Courtesy - Getty Images(LONDON) -- Beautiful people apparently not only have looks, but also brains.  A joint U.S./British study conducted by the London School of Economics not only scored more than 52,000 people on their appearance, it also measured their academic achievements and IQ.

Researchers discovered that handsome men scored 13.6 points above the average IQ score of 100, while beautiful women were 11.4 points above.

“In samples, physical attractiveness is significantly positively associated with general intelligence, both with and without controls for social class, body size and health,” lead researcher Satoshi Kanazawa tells Britain’s Sun newspaper.

The research also seems to indicate that the offspring of good-looking couples will inherit their parents’ higher intelligence genes.

Copyright 2011 ABC News Radio

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