This chart shows a Scottish study where a group of 90-year-olds were given an IQ test they previously took at age 11. Even though intelligence generally declines with age, those who had high IQs ...

The IQ numbers ... top of the IQ scale, while all the states that voted for then-Texas Governor George W. Bush were clustered at the bottom. Now, someone has dusted off the same chart and ...

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As the chart shows, girls outnumbered boys for test scores in the middle – between 90 and 115, while boys outnumbered girls both for: a) low IQ scores below 90 and b) high IQ scores above 115.