Live data from Hacker News

Children’s IQ dropped during lockdown, study finds

telegraph.co.uk

31–40 of 47 posts

Re: Children’s IQ dropped during lockdown, study finds

#32

I thought IQ was more inherent? Why would missing a year of school make you dumber or smarter? My school when I was growing up tracked you based on an IQ test at age 4. How does that type of test vary as you age?

autumn 2020 wouldn't even have been a year of missed school.

Re: Children’s IQ dropped during lockdown, study finds

#33
post #4

How should I interpret Figure 8? https://journals.plos.org/plosone/article/figure?id=10.1371/... If the difference between the 2012 and 2020 cohorts is roughly the same as between the 2012 and 2002 cohorts, why should I suspect this isn't just a failure to pick comparable cohorts across the decades?

"Kinda wild" that they're attributing a change over 8 years to the last 6-9 months of that period.

Re: Children’s IQ dropped during lockdown, study finds

#34

Is this because increase social media/internet use? Edit: Also, how can the average IQ be 112? I thought it was always 100?

> Also, how can the average IQ be 112? I thought it was always 100? Sample mean (112) != population mean (unknowable) != an estimate of the population mean (100)

Can anybody confirm or refute this?

Re: Children’s IQ dropped during lockdown, study finds

#36

I thought IQ was more inherent? Why would missing a year of school make you dumber or smarter? My school when I was growing up tracked you based on an IQ test at age 4. How does that type of test vary as you age?

Without reading the article nor being an expert in intelligence (but hey, I'm a certified HN commenter), probably the reduced stimulation (reduced interaction with friends and the wider world outside the home) is what was detrimental to intelligence development.

To use an extreme comparison, children who were locked up in basements also come out being less mentally capable than their peers.

Re: Children’s IQ dropped during lockdown, study finds

#37

Earlier quoted context omitted.

> Also, how can the average IQ be 112? I thought it was always 100? Sample mean (112) != population mean (unknowable) != an estimate of the population mean (100)

Can anybody confirm or refute this?

This is just statistics. Those 3 things are distinct things in statistical parlance. The 112 number is the sample mean of a given sample. The 100 is the estimate of the population mean.

If you give a subset of a population an IQ test, the average of all those results isn't going to be exactly 100, because sample means differ from population means due to sheer noise not to mention sampling bias. You might get 98 or 112. Assuming no bias (such as selection bias), the expected value of the sample mean will asymptote to 100 as you increase the sample size.

Likewise if you measure the average height of a group of people, you may get a sample mean of 5'9.6, but it won't be exactly 5'10 or whatever the population mean happens to be in the country at large, again due to noise or sampling bias.

Re: Children’s IQ dropped during lockdown, study finds

#38

Earlier quoted context omitted.

Sorry what? You still believe - after everything we've seen - that the lockdowns were a good idea? Are. You. Insane?

A lot of this stuff was really politicized so yes, I believe it's possible to be anti-lockdown for bad reasons. This doesn't seem to be the case with this study though.

Like what? What is a bad reason for not wanting the government to force you into house arrest?

Re: Children’s IQ dropped during lockdown, study finds

#39

[flagged]

So the main opposition to Labour should be dismissed off hand? The conflation of 'the political left's perception of reality' with 'the truth' is outrageous, and nothing more than an attempt to delegitimize views that conflict with the political left's agenda, which corresponds with polls showing in the US, registered Democrats are increasingly gravitating toward authoritarianism: https://rumble.com/vnwyhz-the-mounta…

Criticising the Telegraph has nothing to do with dismissing the opposition to the Labour party. If anybody’s IQ dropped significantly after 2012, it is the target readership of this paper, that went from being a respectable newspaper to a news outlet peddling anti-immigrant, anti-eu and, more recently, anti-lockdown rhetoric.

It has become a Daily Mail with slightly less idiotic headlines and more conventional graphics, with a mission to get Johnson back to Number 10. I don’t think it is by chance that they decided to publish Hancock’s irrelevant leaks the day after Sunak solved the problems that Johnson created in Northern Ireland.

Re: Children’s IQ dropped during lockdown, study finds

#40

Earlier quoted context omitted.

A lot of this stuff was really politicized so yes, I believe it's possible to be anti-lockdown for bad reasons. This doesn't seem to be the case with this study though.

Like what? What is a bad reason for not wanting the government to force you into house arrest?

At some point most covid-related conversations departed the realm of logic and turned into a sort of religious/political war, which also caused a bunch of people say things they didn't believe or care about just to score some points for themselves.

My "favorite" one was that if, in 2020, you for one second doubted that it was some mysterious bats, some people automatically labelled you as a conspiracy theorist and possibly racist. I think those people behaved that way not because of logic but because of hysteria or some other motives of their own. Now the lab leak theory is often described as a likely candidate (to me as a layperson it was the most likely explanation from day one when i read about gain of function research), it's a mainstream point of view published by Bloomberg and for some reason no longer considered tinfoil or racist, probably because you can't score too many political points bashing it anymore.

Similarly, some people made a point to violate or otherwise shit on every single covid precaution not because of some firm scientific beliefs but just to piss people off and potentially score some PR points. That doesn't make me love the lockdowns, but there was plenty of sad behavior all around.

Post reply on HN