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Average IQ scores seem to have been falling and population ageing may be why

newscientist.com

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Re: Average IQ scores seem to have been falling and population ageing may be why

#111

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

The book outliers says that research shows roughly half of IQ dictated by genetics. Do you have research that contradicts this?

Re: Average IQ scores seem to have been falling and population ageing may be why

#113

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

The book outliers says that research shows roughly half of IQ dictated by genetics. Do you have research that contradicts this?

50% would be "highly hereditary".

Re: Average IQ scores seem to have been falling and population ageing may be why

#114

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

Why would this effect suddenly present itself in 2004? Why hasn't it caused average IQ to decline for all of human history? "A recurrent fear during the past century is that the mean IQ level of populations will decline because persons with lower IQ scores have above-average fertility. Most microlevel data demonstrate such fertility differentials, but population IQ levels have risen rather than fallen. In this articl…

Because birth control is a recent invention. Before that, it took smarts to survive in a crapsack world. We have this stereotype of peasants and medieval people as being stupid in general but all the evidence shows otherwise. You had to be smart and capable of making robust plans to eke out a living on hardscrabble.

Re: Average IQ scores seem to have been falling and population ageing may be why

#116

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

Or maybe it's not so simple, and IQ can also be changed by environment. It's not a crazy idea that people with more money have better access to education.

Re: Average IQ scores seem to have been falling and population ageing may be why

#117

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

And connecting the two dots too loudly makes you into a monster.

Just lazy.

Re: Average IQ scores seem to have been falling and population ageing may be why

#118

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

And connecting the two dots too loudly makes you into a monster.

Well drawing strict conclusions in a field that's still highly debated by researchers does, yes.

Re: Average IQ scores seem to have been falling and population ageing may be why

#119

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

The book outliers says that research shows roughly half of IQ dictated by genetics. Do you have research that contradicts this?

50% is a lot...

Re: Average IQ scores seem to have been falling and population ageing may be why

#120

Or maybe it's because, somewhat depressingly, IQ is highly hereditary, as research has shown for decades and new gene research is currently confirming, and people with lower IQs tend to have more children.

Or maybe it's not so simple, and IQ can also be changed by environment. It's not a crazy idea that people with more money have better access to education.

IQ being highly hereditary doesn't mean that it isn't also influenced by environment.
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