this post was submitted on 27 May 2025
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The march to Nazism takes another step

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[–] boonhet@lemm.ee 21 points 4 days ago (2 children)

It's genetic and environmental (I'd argue that societal is a subset of environment - the society you live in is part of your environment).

IQ is far from a perfect measure for intelligence, but it has a high degree of inheritability - up to 80%.

However

As soon as malnutrition comes into play, IQ is automatically severely diminished. Add in all the other environmental factors too, and - it turns out we do have a lot more we can do to increase peoples intelligence, before resorting to eugenics.

[–] TranscendentalEmpire@lemm.ee 5 points 4 days ago (2 children)

I mean, the validity of IQ tests in general should be questioned when the largest variability in scoring is if you've previously studied for an IQ test followed by what language you speak.

Philosophically I don't really think there's a uniform agreement on what exactly defines general intellect, or if that general intellect even matters considering were a species that relies on specialization.

As far as heritability, I imagine that would be a horribly difficult topic to actually get enough research to rule out variables like socioeconomics and cultural differences. I mean I doubt there's that many twin studies to establish the efficacy any particular theory.

[–] jsomae@lemmy.ml 2 points 4 days ago* (last edited 4 days ago) (1 children)

As I recall, studying for an IQ test is able to improve your result by around 7%. That's honestly a pretty impressively low %, indicates to me some level of validity just based on that. What other variables are considered? And can you link me to the language thing? When I look up language, I'm just seeing correlation between language proficiency and IQ, which shouldn't be surprising -- I would imagine that people who measure a higher IQ are better at learning languages.

There is great interest in studying IQ, and people do study that quite seriously.

Philosophically I don’t really think there’s a uniform agreement on what exactly defines general intellect

Agreed, and the person you're replying to said essentially the same thing. IQ itself has correlations with other things, and that alone makes it interesting.

[–] TranscendentalEmpire@lemm.ee 4 points 4 days ago (1 children)

This article does a pretty decent job pointing out some of the variabilities that make IQ test unreliable. Tbh I think the concept of IQ is fruit from the poisoned tree. There are so many people that stake their positions and identities on the efficacy of IQ that the whole data pool is kinda poisoned. For every study that makes a claim, there are other studies rebutting it.

And can you link me to the language thing? When I look up language, I'm just seeing correlation between language proficiency and IQ, which shouldn't be surprising -- I would imagine that people who measure a higher IQ are better at learning languages.

I would have to search for it, i originally read about it when I was in college over a decade ago. Basically the claim was that the vast majority of the tests originate or are interpreted from English or another western language. When certain aspects of the test are interpreted to a different language the sentence structure is modified in a way where it adds an additional barrier for the test taker.

This may be somewhat solved by the different language speakers creating their own test, but that may not overcome the problem due to the need for global standardization, orit may be a barrier to language speakers who's cultures haven't invested the time or resources to the idea of IQ to begin with.

[–] jsomae@lemmy.ml 1 points 4 days ago (1 children)

Ah, right. Yeah, there are some age-old criticisisms of IQ test like translating into a different language can skew the result, or relying on concepts that are cultural but not obviously cultural (like the way buildings are shaped) can skew the result. I'm not generally interested in comparing IQ results between countries or even for people of differing first language though so these don't especially concern me so long as I can be sure a study averts the issue.

From the paper you linked:

there exists a gap in what they are believed to measure and what they do

Hard agree. IQ cannot be said to measure intelligence. But for instance, it correlates well with success (level of education (eventually) reached, or $ in a capitalist society) and I'd be surprised to find any major journal publishing a paper which disputes that.

[–] TranscendentalEmpire@lemm.ee 3 points 4 days ago (1 children)

I'm not generally interested in comparing IQ results between countries or even for people of differing first language though so these don't especially concern me so long as I can be sure a study averts the issue.

My point is the variability between test groups calls into question the reliability of IQ as a concept as a whole. If IQ is an innate measurement of intellect for humans in general, then the reliability of the test shouldn't be culturally constrained.

for instance, it correlates well with success (level of education (eventually) reached, or $ in a capitalist society) and I'd be surprised to find any major journal publishing a paper which disputes that.

Yes, but I could make the same claim about a plethora of other correlations with more confidence like having wealthy parents.

[–] jsomae@lemmy.ml 1 points 4 days ago (1 children)

IQ is not a measurement of human intellect in general. Also, the fact that the test is flawed does not mean it is not useful in some contexts.

Regarding correlation with success, I should have specified that the correlation still exists even when controlling for birth environment.

[–] TranscendentalEmpire@lemm.ee 1 points 4 days ago (1 children)

IQ is not a measurement of human intellect in general.

I don't think there's a scientific consensus of what IQ really measures.

Regarding correlation with success, I should have specified that the correlation still exists even when controlling for birth environment.

I would say that would be extremely difficult to definitively prove. IQ is more of a social study than a hard science, typically this kinda data is more suggestive than it is definite.

[–] jsomae@lemmy.ml 1 points 4 days ago (1 children)

There may not be scientific consensus on what IQ measures, but IQ=intellect is widely considered pseudoscience.

[–] TranscendentalEmpire@lemm.ee 1 points 4 days ago (1 children)

An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence.[1]

What exactly are you claiming? That it's not a test to measure intellect? That IQ is pseudoscience? Or that it's not specifically generalized intellect?

[–] jsomae@lemmy.ml 1 points 4 days ago (1 children)

It's polite etiquette to mention what you're quoting.

Scores from intelligence tests are estimates of intelligence. Unlike, for example, distance and mass, a concrete measure of intelligence cannot be achieved given the abstract nature of the concept of "intelligence".

[–] TranscendentalEmpire@lemm.ee 1 points 4 days ago (1 children)

It's polite etiquette to mention what you're quoting.

It's obviously a common definition of IQ...... It doesn't really matter where it's from as it shows that general definitions of IQ claim it's a test of generalized intellect.

Your quote doesn't really refute my argument, or clarify what claim you are making?

[–] jsomae@lemmy.ml 1 points 4 days ago* (last edited 4 days ago)

I was quoting the same page you were quoting.

I'd say IQ is an attempt at concretizing a notion of intelligence. There's little consensus on what intelligence really means, so there's not much more to say than that. In other words, IQ is just a number. More relevant is what IQ can be found to correlate with.

[–] boonhet@lemm.ee 2 points 4 days ago (2 children)

Wait, do people actually study for IQ tests? Why? Language makes sense, if I tried doing one in German I would fail because I barely speak it at an A2 level, if that.

I reckon general intellect does matter. In a world where your job might not exist in 5 years because lol AI, it's best to be able to adapt fast. Specialize, yes, but one day your specialization will be useless. Best case scenario, it's after you've retired.

And going back to heritability, there's definitely some heritability there, but the problem with twin studies is that twins tend to have the same socioeconomic backgrounds too. Still, just malnutrition, environmental pollution, etc, are big enough factors that taking care of those on a nationwide scale (since we're talking about a particular nation here), would be much more significant than eugenics. Then we get to education - again, this same particular nation has a lot of gaps in the availability of good quality education.

[–] TranscendentalEmpire@lemm.ee 3 points 4 days ago (1 children)

Wait, do people actually study for IQ tests? Why?

The same reason mensa is a thing. People like to toot their own horn.

reckon general intellect does matter. In a world where your job might not exist in 5 years because lol AI, it's best to be able to adapt fast. Specialize, yes, but one day your specialization will be useless. Best case scenario, it's after you've retired.

To a certain extent yes, but no one can be an expert at everything. There just isn't enough time, and expertise is really what society rewards people for at the end of the day.

And going back to heritability, there's definitely some heritability there

I would say that would be incredibly hard to empirically prove due to the problems you mentioned. At best we could speculate that heritability may be an influence, but that influence is vastly overshadowed by environmental factors.

[–] boonhet@lemm.ee 2 points 4 days ago (1 children)

The same reason mensa is a thing. People like to toot their own horn.

Fair enough, I've also at one point been 13 and done a bunch of useless online IQ tests. Never studied for them, they seemed like mostly simple pattern recognition and general logic questions, which I've never really thought you could even study for.

To a certain extent yes, but no one can be an expert at everything. There just isn’t enough time, and expertise is really what society rewards people for at the end of the day.

Absolutely. But general intellect, as far as I can tell (and maybe my understanding of it is wrong), is what influences your ability to shift to a new field and gain expertise in that. Years alone don't cut it. In my own field, I've seen software engineers who can't program for shit, let alone make any architectural decisions after a decade - and ones that are pretty competent after 2-3 years. Now imagine you're 10 years into a career and it starts becoming less and less relevant due to changes in society. If you're naturally intelligent, you're both 1) more likely to have learned more from your 10 years than others have, so more valuable for longer, and 2) more likely to be able to switch to an unrelated or semi-related career path and become useful in a shorter amount of time.

Of course it gets more complex than that because general intellect doesn't span ALL skills. In fact, it's more like ranges of aptitudes. I have great aptitude for STEM, pretty decent aptitude for languages, and absolutely none for arts. No drawing, no singing, etc. No matter how much practice I get and how much practice I got in my childhood. There's just skills I won't learn in 10 years of practice, and skills I pick up rapidly, and it's been that way since childhood.

Hell, maybe general intellect isn't a thing after all.

I think IQ in particular unfairly prioritizes understanding of language and logic, over artful skills and, e.g emotional intelligence (which is measured by EQ I guess). It's a pointless measure. My main point that I wanted to make was that some people are naturally more gifted, and just faster learners, than others. There's people from good families who have never suffered from malnutrition or emotional abuse and went to good schools, who aren't all that smart, and people from far worse backgrounds who are geniuses. Something must be contributing to that. If not genetics, then what? At the same time, yes, people from emotionally healthy families with no financial issues, are more likely to be successful in school as well as life in general.

[–] TranscendentalEmpire@lemm.ee 2 points 4 days ago

Never studied for them, they seemed like mostly simple pattern recognition and general logic questions, which I've never really thought you could even study for.

There are a few different tests that are supposed to clinically measure IQ. Most of them are more complex than pattern recognition and most all of them are administered by some sort of clinician, which can also influence outcomes.

But general intellect, as far as I can tell (and maybe my understanding of it is wrong), is what influences your ability to shift to a new field and gain expertise in that. Years alone don't cut it. In my own field, I've seen software engineers who can't program for shit, let alone make any architectural decisions after a decade - and ones that are pretty competent after 2-3 years.

I would say that the ability to gain expertise is generally hard to differentiate with the motivation to gain expertise. What we can empirically prove is that time spent practicing a skill is how we gain expertise in most any skill.

In fact, it's more like ranges of aptitudes. I have great aptitude for STEM, pretty decent aptitude for languages, and absolutely none for arts. No drawing, no singing, etc. No matter how much practice I get and how much practice I got in my childhood.

It could be that you just perceive yourself being at being better at stem because you enjoy practicing the skills required for stem. People generally gain experience faster in skill sets they enjoy or skills they perceive thems to excel at.

There's just skills I won't learn in 10 years of practice, and skills I pick up rapidly, and it's been that way since childhood.

Again, this could be self fulfilling process. If you don't think you will excel at something you may not fully engage in the process, or even self sabotage the process.

think IQ in particular unfairly prioritizes understanding of language and logic, over artful skills and, e.g emotional intelligence (which is measured by EQ I guess).

I think for this to be true your claim would have to be that emotional intellect is devoid of logic or language.....which seems fairly self evidently incorrect.

My main point that I wanted to make was that some people are naturally more gifted, and just faster learners, than others.

Or people are better at learning things they are self motivated to learn about, and that society influences what skills we find valuable or "intellectual".

In short, what we can empirically prove about intellect is usually environmental in nature, and what we can only theorize about heritability cannot be differentiated from other variabilities that may correlate with that theory.

[–] jsomae@lemmy.ml 0 points 4 days ago

One reason people study for IQ tests is to learn to what extent studying for an IQ test affects the result.

[–] Snowclone@lemmy.world 3 points 4 days ago

There's no evidence it's generic at all. It's very difficult to access 'intelligence' or make usable data about intelligence. You really can't test how intelligent people are, most of what we can test with repeatable results is skills, which famously can be improved over time reliably. To the point there's time estimates on how long it takes to be a skilled person in one ability or another. I work with special needs kids, and let me tell you, you learn real quick working with these kids that there's close to zero differences between them and their same age peers. People are very similar, and even people you'd consider rather foolish on a lot of metrics interacting with them, can be quite brilliant at what they are interested in and skilled in.