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A comment on Lead exposure in last century shrunk IQ scores of half of Americans: study. Parent comment

Re:Lead exposure in last century shrunk IQ scores of half of... by kukx on Tuesday March 08, 2022 @02:03PM (#30604527)
Is it certain that the Pb causes the lower IQ or maybe there is some other factor and poorer people happen to have higher concentration?
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Re:Lead exposure in last century shrunk IQ scores of half of... by raegis on Tuesday March 08, 2022 @03:25PM (#30606380)
It one of the most impactful studies on how lead affects intellectual development, the researcher (who is white) restricted the study to white people only because he assumed (correctly) his results would be ignored if he included African Americans who are disproportionately affected by lead poisoning.
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Re:Lead exposure in last century shrunk IQ scores of half of... by trophycase on Tuesday March 08, 2022 @03:47PM (#30606661)
How can you assume correctly if you aren't even testing that assumption?
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Re:Lead exposure in last century shrunk IQ scores of half of... by treeman79 on Tuesday March 08, 2022 @03:53PM (#30606782)
It’s politically toxic to try and commission a study on the intelligence of one race/gender versus another.
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Re:Lead exposure in last century shrunk IQ scores of half of... by LordDragonfang on Tuesday March 08, 2022 @03:02PM (#30605968)
It's been pretty well accepted for decades that this is the case:

>A highly significant association was found between lead exposure and children's IQ (P < 0.001)... There was no evidence that the effect was limited to disadvantaged children and there was a suggestion of the opposite.

https://pubmed.ncbi.nlm.nih.gov/8162884/

That's a 1994 meta-study that turned up in 30 seconds of googling, and I'm sure more recent evidence also exists.

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