I can't give a cite for the following I read it in either a newspaper or magazine probably 30+ years ago. There was a school district in a small town that for the first time gave IQ tests to all of the children in some younger age group, I think around 7 or 8. The results showed a several point difference between the white kids and the Black kids. The district wrote this off as due to cultural bias in the tests. One…
> The district wrote this off as due to cultural bias in the tests. They did not rule this out? Could still have been a contributing factor.
Around one-in-three children globally suffer from lead poisoning
131–140 of 231 posts
Re: Around one-in-three children globally suffer from lead poisoning
#132Earlier quoted context omitted.
While it's uplifting story and I can easily believe that higher lead exposure for Black kids over white kids led to lower IQ results in tests in that specific case, there are no school districts in US with no gap between white and Black students. So far there has not been identified single parameter that explains White/Black gap and not for the lack of trying.
I mean in an interview Steven Pinker himself said there’s some things that we may not want to know, because if the parameter is wholly outside of human control it’d just contribute to racism and serve no useful purpose. Also even if a study found parameters like that, it would never be published as the scientists career would absolutely be ruined.
Re: Around one-in-three children globally suffer from lead poisoning
#133I can't give a cite for the following I read it in either a newspaper or magazine probably 30+ years ago. There was a school district in a small town that for the first time gave IQ tests to all of the children in some younger age group, I think around 7 or 8. The results showed a several point difference between the white kids and the Black kids. The district wrote this off as due to cultural bias in the tests. One…
This is an excellent cautionary tale against lazily attributing politically inconvenient data to testing bias (which remains fashionable). It may seem like an easy way out, but it also offers an excuse to simply ignore the problem, which perpetuates it.
Re: Around one-in-three children globally suffer from lead poisoning
#134>What can we do to reduce this?
I just love this template of framing important issues:
Step 1: Imply like there isn't anyone respinsible for a problem, as if it is a natural phenomenon, inspite huge corporate interests being the driving force of the problem.
Step 2: Imply that "we" are all together against this evil (although "we" includes the people that cause the evil) and also imply that "we" the common public has some form of power to actually enforce change on such a matter.
Step 3: Propose a solution that just happens to favour some corporate interests antithetical to the ones that cause the problem and imply that "we" all want this, right? Because what is happening right now is bad, so we are all onboard with your solution.
Re: Around one-in-three children globally suffer from lead poisoning
#135Earlier quoted context omitted.
This is an excellent cautionary tale against lazily attributing politically inconvenient data to testing bias (which remains fashionable). It may seem like an easy way out, but it also offers an excuse to simply ignore the problem, which perpetuates it.
It isn't necessarily just laziness. The first step to fixing the problem means accepting the results, which in this case meant accepting a certain racial group of (silently lead-poisoned) kids had measurably lower intelligence. I don't think I need to explain why that is a minefield.
Re: Around one-in-three children globally suffer from lead poisoning
#136Earlier quoted context omitted.
While it's uplifting story and I can easily believe that higher lead exposure for Black kids over white kids led to lower IQ results in tests in that specific case, there are no school districts in US with no gap between white and Black students. So far there has not been identified single parameter that explains White/Black gap and not for the lack of trying.
Isn't there an IQ gap between poor people and wealthy? Isn't a large chunck of that attributable to healthcare, nutricion, schooling, stress, pollution, etc, etc.? Aren't those same factors going to show up in racial differences?
stress in particular has a measurable impact on cognition, behavior, and motor development. even prenatal maternal stress.
https://www.nber.org/papers/w18422
parental leave, cash and food support, and other assistance during pregnancy and childhood, are probably one of the easiest policy wins towards improving outcomes for a huge segment of the population. better schools with smaller class sizes and individualized support for each student would be the next step.
Re: Around one-in-three children globally suffer from lead poisoning
#137Earlier quoted context omitted.
...and both are fine in laminated materials like solar panels no? No need to scaremonger.
PCBs are fine. It's sealed in transformers. There's an empty lot downtown near me where a substation used to be and they can't build anything on it. A whole city block paved over with a fence around it that will never be used for anything again. Asbestos is fine, it's stuck in the walls, or it's in break pads nobody is inhaling, etc. However, many large industrial companies slowly went broke over decades because of a…
Re: Around one-in-three children globally suffer from lead poisoning
#138There's a new drug emerging from Berkeley and a company spawned from there called HOPO [1]. The drug is a chelator that has a special affinity for heavy metals in the lanthanide group, which happen to be some of the more toxic metals. This includes gadolinium, which is found in MRI contrast agents, and has been known to cause many-year retention in the bones and skull [2] from just a single dose. "The chelating agent…
Gadolinium seems like one of those things that won't even be allowed in most circumstances in a few more years. It has been used for decades and conventional wisdom was, if your kidneys are fine it all leaves the body in 24 hours. Then just a few years ago we learn this is false and that deposits can be found years later in the brain. The effect may be highly lagged or small, but have to believe it isn't healthy.
Re: Around one-in-three children globally suffer from lead poisoning
#139Earlier quoted context omitted.
Couldn't you argue the disproportionate number of black people being stuck in lead-filled houses is still an example of some sort of oppression? It's not like black people who were shopping for their houses said "Gee, I'd sure like my kids to have lead poisoning."
I think the critical difference is that a gut reno to eliminate the actual source of low IQ is significantly more feasible than swiftly eradicating most of the other issues that contribute to oppression. Identifying low-hanging fruit is a good quick win, so long as it doesn't weaken broader efforts.
I guess what I'm trying to say is that lead poisoning is a symptom of a bigger issue. It's perfectly fine (and encouraged) to treat the symptoms, but I feel like the comment was replying to was acting like we shouldn't attribute things like this to systemic oppression.
Re: Around one-in-three children globally suffer from lead poisoning
#140I can't give a cite for the following I read it in either a newspaper or magazine probably 30+ years ago. There was a school district in a small town that for the first time gave IQ tests to all of the children in some younger age group, I think around 7 or 8. The results showed a several point difference between the white kids and the Black kids. The district wrote this off as due to cultural bias in the tests. One…
This is an excellent cautionary tale against lazily attributing politically inconvenient data to testing bias (which remains fashionable). It may seem like an easy way out, but it also offers an excuse to simply ignore the problem, which perpetuates it.