IQ Facts and Figures
- After the last Presidential election, a study was done that indicated states with lower average IQs voted for George Bush and those with higher IQs for John Kerry.
- 0.1% of the world's population has an IQ of 145 or above, the level required to be deemed profoundly gifted.
- 50% of IQ scores fall between 90 and 110
- 70% of IQ scores fall between 85 and 115
- 95% of IQ scores fall between 70 and 130
- 99.5% of IQ scores fall between 60 and 140
- A score of 132 equals the top 2%
- A score of 134 equals the top 1%
- A score of 68 equals the bottom 2%
- A score of 66 equals the bottom 1%
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The IQ Bell Curve
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The distribution of IQ scores is as follows:
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Historical IQ's are from a 1926 study by psychologist Dr. Catherine Morris Cox. For more information on how the historical IQ's have been calculated please refer to the Wikipedia article on Catherine Cox Miles.