The cognitive costs of air pollution
patrickcollison.com
The cognitive costs of air pollution
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Re: The cognitive costs of air pollution
#2This is blogspam. Here's the original post: https://patrickcollison.com/pollution
Re: The cognitive costs of air pollution
#3If the effect were present, and as large as implied, you’d expect low IQ test results in ultra-polluted Chinese cities such as Shanghai and Beijing. And yet... http://www.city-data.com/forum/world/2348902-china-iq-map-pr...
Re: The cognitive costs of air pollution
#4If the effect were present, and as large as implied, you’d expect low IQ test results in ultra-polluted Chinese cities such as Shanghai and Beijing. And yet... http://www.city-data.com/forum/world/2348902-china-iq-map-pr...
Pardon my ignorance, but how is this IQ data obtained? It is reported by the government? Are IQ tests standardized?
Re: The cognitive costs of air pollution
#5This is blogspam. Here's the original post: https://patrickcollison.com/pollution
Should I upvote despite that, or wait for somebody to post the original? I'm not sure of HN's norms here.
Re: The cognitive costs of air pollution
#6If the effect were present, and as large as implied, you’d expect low IQ test results in ultra-polluted Chinese cities such as Shanghai and Beijing. And yet... http://www.city-data.com/forum/world/2348902-china-iq-map-pr...
Pardon my ignorance, but how is this IQ data obtained? It is reported by the government? Are IQ tests standardized?
>IQ tests standardized?
IQ tests can't be standardized across cultures. Even something like Raven's Progressive Matrices has a cultural component. https://www.apa.org/monitor/feb03/intelligence
Also China has some issues with the way they report scholastic achievement that make their results appear higher than they should. China is very selective about which students take standardized tests that are used for global comparisons--they aren't random samples.
Re: The cognitive costs of air pollution
#7This is blogspam. Here's the original post: https://patrickcollison.com/pollution
Should I upvote despite that, or wait for somebody to post the original? I'm not sure of HN's norms here.
You can upvote and also email the mods using the Contact link in the footer; they can swap out links easily.
Re: The cognitive costs of air pollution
#8How do you all monitor air quality?
I personally have a couple of devices (an Awair and a Flow). They seem to under-report PM2.5 compared to purpleair, airnow, and waqi.
Re: The cognitive costs of air pollution
#9If the effect were present, and as large as implied, you’d expect low IQ test results in ultra-polluted Chinese cities such as Shanghai and Beijing. And yet... http://www.city-data.com/forum/world/2348902-china-iq-map-pr...
How long have they been that polluted though?
Looks like that map is from 2005.
Re: The cognitive costs of air pollution
#10Earlier quoted context omitted.
Pardon my ignorance, but how is this IQ data obtained? It is reported by the government? Are IQ tests standardized?
>IQ tests standardized? IQ tests can't be standardized across cultures. Even something like Raven's Progressive Matrices has a cultural component. https://www.apa.org/monitor/feb03/intelligence Also China has some issues with the way they report scholastic achievement that make their results appear higher than they should. China is very selective about which students take standardized tests that are used for global c…
Seems hilarious to assume they can be standardized within a culture too, whatever a culture may be.