News for hackers. Stuff that matters.

A comment on Leaded fuel reduced IQ of children born before 1990. Parent comment

Re:Leaded fuel reduced IQ of children born before 1990 by Imnimo on Wednesday October 20, 2021 @11:35AM (#28931978)
https://en.wikipedia.org/wiki/Flynn_effect (tests are re-standardized to keep the mean at 100, but the un-standardized mean actually increases over time)
[ Parent | on HN ]
Re:Leaded fuel reduced IQ of children born before 1990 by paulpauper on Wednesday October 20, 2021 @11:52AM (#28932204)
then doesn't this counter the argument that IQs are falling
[ Parent | on HN ]
Re:Leaded fuel reduced IQ of children born before 1990 by Tenoke on Wednesday October 20, 2021 @11:57AM (#28932269)
It does. They are not. Or at least if some factors are lowering it, other factors like better nutrition and deleading etc. are more than counteracting it.
[ Parent | on HN ]
Re:Leaded fuel reduced IQ of children born before 1990 by steerablesafe on Wednesday October 20, 2021 @01:48PM (#28933639)
https://en.wikipedia.org/wiki/Simpson%27s_paradox
[ Parent | on HN ]