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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

#2
OECD 2016

"Young people in England are the most illiterate in the developed world with many students graduating with only a basic grasp of English and maths, an in-depth analysis by the Organisation for Economic Co-operation and Development has found. The OECD report rated English teenagers aged 16 to 19 the worst of 23 developed nations in literacy and 22nd of 23 in numeracy.

In contrast, pensioners or those close to retirement were among the highest-ranked of their age group."

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

#3
post #2

OECD 2016 "Young people in England are the most illiterate in the developed world with many students graduating with only a basic grasp of English and maths, an in-depth analysis by the Organisation for Economic Co-operation and Development has found. The OECD report rated English teenagers aged 16 to 19 the worst of 23 developed nations in literacy and 22nd of 23 in numeracy. In contrast, pensioners or those close t…

Don't IQ tests control for that? I took one as a small child, and while I could read quite well, I don't remember needing to. It was a lot of "use these blocks to reproduce this diagram" and "given these three pictures, which should come next?" type of thing.

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

#4
post #2

OECD 2016 "Young people in England are the most illiterate in the developed world with many students graduating with only a basic grasp of English and maths, an in-depth analysis by the Organisation for Economic Co-operation and Development has found. The OECD report rated English teenagers aged 16 to 19 the worst of 23 developed nations in literacy and 22nd of 23 in numeracy. In contrast, pensioners or those close t…

But most people back then didn't go to university. And the OECD compares across 23 developed nations.

Though, in my opinion, education quality has gone down.

In France, 2010ish?, in my last year of high school (in one of the best parisian high school) there was a boy who couldn't read aloud a text without stumbling. I don't know if this would have happened in the past. But back then only 20k students reached that stage and now it's 200k.

edit: stumbling/stuttering

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

#5
post #2

OECD 2016 "Young people in England are the most illiterate in the developed world with many students graduating with only a basic grasp of English and maths, an in-depth analysis by the Organisation for Economic Co-operation and Development has found. The OECD report rated English teenagers aged 16 to 19 the worst of 23 developed nations in literacy and 22nd of 23 in numeracy. In contrast, pensioners or those close t…

Don't IQ tests control for that? I took one as a small child, and while I could read quite well, I don't remember needing to. It was a lot of "use these blocks to reproduce this diagram" and "given these three pictures, which should come next?" type of thing.

The movie idiocracy comes to mind. Apparently the flynn effect slowed down. Some people hypothesize that the wellfare state has a dysgenic effect by redistributing income from high IQ (high income) people to low IQ (low income or wellfare recipients)... It effectively creates disproportionate economic incentives for having children, and some indications put heritability of IQ above 0.7

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

#7
post #2

OECD 2016 "Young people in England are the most illiterate in the developed world with many students graduating with only a basic grasp of English and maths, an in-depth analysis by the Organisation for Economic Co-operation and Development has found. The OECD report rated English teenagers aged 16 to 19 the worst of 23 developed nations in literacy and 22nd of 23 in numeracy. In contrast, pensioners or those close t…

But most people back then didn't go to university. And the OECD compares across 23 developed nations. Though, in my opinion , education quality has gone down. In France, 2010ish?, in my last year of high school (in one of the best parisian high school) there was a boy who couldn't read aloud a text without stumbling. I don't know if this would have happened in the past. But back then only 20k students reached that st…

A stutter is a disability not a sign of lack of intelligence/education.

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

#8
It seems like with just a bit more effort the authors could have made a stronger case for their theory that aging is significantly impacting IQ scores by comparing IQ scores among people of the same age (e.g. 20-30 year olds) from decade to decade. They could also look at how IQ changes over a lifespan; there must be some within-subject data available where the same people took an IQ test when they were 60.

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

#9
post #5

Earlier quoted context omitted.

Don't IQ tests control for that? I took one as a small child, and while I could read quite well, I don't remember needing to. It was a lot of "use these blocks to reproduce this diagram" and "given these three pictures, which should come next?" type of thing.

The movie idiocracy comes to mind. Apparently the flynn effect slowed down. Some people hypothesize that the wellfare state has a dysgenic effect by redistributing income from high IQ (high income) people to low IQ (low income or wellfare recipients)... It effectively creates disproportionate economic incentives for having children, and some indications put heritability of IQ above 0.7

Flynn effect didn't slow down. It actually reversed.

https://theeconomyofmeaning.com/2015/11/12/new-study-shows-r...

It's like https://xkcd.com/603/, except White Hat is is wrong on most accounts.

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

#10
I like to play a little game I call "HN matter anti-matter" where I notice contradicting articles posted on HN and imagine them colliding and erasing each other...

In this case: Yes, We Get Wiser with Age (nautil.us) https://news.ycombinator.com/item?id=15346635

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