Richárd @krichard1212 Twitter profile

Last Seen Profiles

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@Arc_Husky

@lucapupy

@yourMidwestMike

@PreciousCa70422

@suu0606

@StarbucksCanada

Richárd

@krichard1212

3 months

Daily reminder that most studying techniques are extremely ineffective, and needlessly time consuming. With spaced repetition one can learn 10-100 times more factoids/unit of time when compared to simply studying. Too bad nobody cares enough to optimize this system.

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@krichard1212

2 months

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Richárd

@krichard1212

7 months

A new study on IQ and job performance dropped. Sackett's claims are vindicated, AND they fail to find support for the claim that IQ predicts better in "high complexity" jobs.

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Richárd

@krichard1212

3 months

Paper: We should teach people about IQ Sasha Gusev: I've read the IQ research literature, and came to the the following conclusions IQ researchers: NONONONONONO, you haven't published in INTELLIGENCE/PAID, you cannot have an opinion, only IQ researchers can have them.

Andrew R. A. Conway, Ph.D.

@AndrewRAConway

3 months

Oh look, a Harvard professor who has never published a paper on the topic of intelligence, has never taught a course on the topic on intelligence, weighs in on the meaning of IQ. Dude, Gould did it, 40 years ago. He was wrong then, you are wrong now. Bored.

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Richárd

@krichard1212

3 months

@Chicken_Face1 Comments are amazing "Just predict when you're gonna need urgent access to a bathroom and build your whole day around that fact lmao"

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Richárd

@krichard1212

10 days

Daily reminder that education increases IQ by about 5 points/year It's not overestimated due to measurement error as Hansen, Heckman, Mullen 2004 show. Education's effect are also stronger for ppl with lower initial IQ, and there are no diminishing returns

Diana S. Fleischman

@sentientist

11 days

An environmental intervention that reliably increased IQ by 2.5 points would be considered huge, but when you do it with embryo selection it has "limited utility". For example, the benefit of deleading in the USA would be about 2.6 IQ points, but nobody would say that it's not

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Richárd

@krichard1212

4 months

Steve Stewart-Williams

@SteveStuWill

4 months

"IQ tests are among the most reliable, predictive measures in psychology – one of the field's crowning achievements. If IQ isn't a valid concept, no concept in psychology is valid, and we might as well quit and become plumbers or electricians."

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Richárd

@krichard1212

2 months

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Richárd

@krichard1212

3 months

Novel explanation for the missing h^2 problem just dropped.

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Richárd

@krichard1212

2 months

New study explains why we don't see significant adoptive parent-adoptee correlations, despite adoption having a huge effect on the mean level of the adoptees' achievement.(it's basically due to noise)

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Richárd

@krichard1212

7 months

Human behavioral geneticists: "Idk how can people deny the 80%+ heritability of psychological traits, what's next? Blank slatism for animal traits?" Animal geneticists:

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Richárd

@krichard1212

3 months

Just admit that you don't want people to learn about IQ, you want people to agree with your conclusions at his point

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Richárd

@krichard1212

22 days

Psychologists when they yap about thing they haven't studies(like genetics): totally fine Psychologists when non psychologists have an opinion about a psychological measurement: NOT FINE, UNACCEPTABLE

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Richárd

@krichard1212

4 months

15 year old me was so fooled by Jordan Peterson. I rememeber the time when I was watching his lecture about the link between IQ and profession(which he basically copied from Gottfredson) and being sad because I wasn't in the top x% IQ range for my intended career.

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Richárd

@krichard1212

3 months

No you don't understand, twin heritability will surely be recovered once we account for GxGxGxGxGxGxGxGxGxGxG interactions

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Richárd

@krichard1212

6 days

Don't use z scores when the variance and mean isn't stable across time or groups pls.

Nicholas Fabiano, MD

@NTFabiano

7 days

There is a U-shaped association between BMI and mental health. 🧵1/10

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Richárd

@krichard1212

3 months

lmao

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Richárd

@krichard1212

4 months

Hbders be like: -Graham Coop is an incompetent lying academic = bad and biased -Cremieux is a polymath expert on genetics and psychometrics = good, and honest Beyond parody really

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Richárd

@krichard1212

4 months

My twitter/discord DMs be like: -Doomer HBD guy depressed cuz he has avg IQ -Confused hbder -"just asking questions" hbder -Guy who hates psychometrics -Psychometrician -h^2=0 believer -Ivy league genetics prof -another psychometrician -IQ researcher -failed dox attempt(how???)

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Richárd

@krichard1212

3 months

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Richárd

@krichard1212

5 months

@xo_brane @SashaGusevPosts @KitchenSlippers @whstancil

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Richárd

@krichard1212

4 months

I guess this what kids today call "cope"? Also Sackett et al responded to it like half a year ago. Never trust anons for scientific info, read both perspectives and make up your own mind.

A reply to commentaries on “Revisiting the design of selection systems in light of new findings...

A reply to commentaries on “Revisiting the design of selection systems in light of new findings regarding the validity of widely used predictors” - Volume 16 Issue 3

www.cambridge.org

Inquisitive Bird

@Scientific_Bird

4 months

This critique of Sackett et al.'s recent meta-analysis (that claims cognitive ability is a much weaker predictor of job performance than previously thought), shows that Sackett et al.'s analysis is flawed, is conservative by construction, and their results are untenable.

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Richárd

@krichard1212

1 month

Despite the fact that I will defend the fact that education causes *meaningful*, non hollow IQ gains, i fucking hate the whole schooling system. I already hated it in elementary school, and continue to do so in college

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Richárd

@krichard1212

11 months

Random HBDers: "Psychometrics is a totally objective science" Actual leading psychometricians:

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Richárd

@krichard1212

10 months

Writing takes much more time than I thought. This is gonna take a while, I'm tackling heritability rn. I didn't even touch alternative manifold explanations yet, and I'm already at 6k words. Also I'm quite suprised there are people who want to read my ramblings on this topic.

Richárd

@krichard1212

10 months

Hold up I'm cooking a blog post rn.

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Richárd

@krichard1212

8 months

IDK why people think this is a gotcha. In order to solve this you need to indentifiy, and track the positions of the objects in your working memory. Much easier when you have the words learned to do so. Also progressive matrices like these have lukewarm g-loadings at best.

@x

@peaceinpower

8 months

@Race__Realist @crowwashere @EPoe187 @rdunsheath Here is an example of an IQ test question. Explain how it’s culturally biased

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Richárd

@krichard1212

5 months

Latent variable realism is hell of a drug

Daniel Litt

@littmath

5 months

Apparently conventional wisdom among race science wackjobs: tests don’t work if you [checks notes] study for them

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Richárd

@krichard1212

9 months

Heritabilities in animals are much less than for humans. Either humans are special, or the assumptions do not hold.

Heritability estimates in behavior genetics: Wasn't that station passed long ago? | Behavioral and...

Heritability estimates in behavior genetics: Wasn't that station passed long ago? - Volume 35 Issue 5

www.cambridge.org

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Richárd

@krichard1212

5 months

First ever paper in the journal Behavior Genetics

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Richárd

@krichard1212

2 months

Cremieux's prediction vs reality

yaJ

@alamjay78

2 months

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Richárd

@krichard1212

29 days

Yeah let's just ignore the dozens of quasi experimental studies where there are no concerns wrt to measurement error. The linked study analyzes 1(one) longitudinal(non experimental) study... Twitter pop-science accounts should be banned from the site, they cause low IQ.

Rolf Degen

@DegenRolf

29 days

The beneficial effect of higher education on intelligence is significantly lower than previously assumed and levels off after two years of schooling. The effect of higher education on intelligence has been examined using longitudinal data. Typically, these

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Richárd

@krichard1212

4 months

@getnormality This is like concluding that one cannot learn chess after looking at a 2000+ ELO puzzle IMO

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Richárd

@krichard1212

7 months

Imagine being a geneticist on in 2023. One simple mistake like pointing out why certain PGS analyses are statistically nonsense, and it's over. People with hate-follow you, and hereditarians will write 2k character long fanfictions about your sex life.

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Richárd

@krichard1212

7 months

So much cope about this study from hereditarians. Scratch vertical transmission, I'm covering learning speed next.

MindShift

@MindShiftKQED

7 months

A study from Carnegie Mellon University finds that everyone learns at the same rate, although some students have a head start. A group of scientists set out to study quick learners. Then they discovered they don't exist

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Richárd

@krichard1212

1 year

Franklin Bruno

@humanfranklin

1 year

Ok, all you geniuses: who’s a -smart- person’s idea of a smart person? Whose intellectual work and manner of presenting it has earned your respect? Or do we not commit ourselves that way on Twitter?

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Richárd

@krichard1212

4 months

Cognitive ability fails to predict yet another outcome (rate of forgetting).

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Richárd

@krichard1212

3 months

Who could've guessed

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Richárd

@krichard1212

9 months

@NSesardic It's a term made up by hereditarians because "correlation isn't causation" wasn't catchy enough, so they rebanded it to subtly undermine a whole field. Repackaging basic concepts to seem insightful? Classic move by pseudointellectuals.

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Richárd

@krichard1212

2 months

"Our assumptions are true"->"Okay they are not true, but they don't affect paremeter estimates"->"Okay they may affect parameter estiamtes even in the real population, but we can detect them"-> The power to detect simple cases is ~0.3, and requires item level or multivariate data

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Richárd

@krichard1212

7 months

My grandfather just gave me the scoring manual for the Mawi (Hungarian WAIS) along with some case files. I'm dumbfounded. My favorite case is a woman who gained like 30 IQ points in 1 hour by being given a placebo for anxiety.

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Richárd

@krichard1212

9 months

This guy is considered the intellectual giant of hereditarians btw

Legitimate Yam

@Legitimate_Yam

9 months

@teortaxesTex @wallischris10 @SashaGusevPosts @cremieuxrecueil Yeah, embarrassing indeed.

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@krichard1212

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@krichard1212

2 months

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Richárd

@krichard1212

2 months

Okay, I'll read The Science of Human Intelligence 2nd edition, and do a thread about it as I read it. This post was the final trigger. Hunt's book(first edition) was the best and most objective textbook on IQ. I hope they didn't mess up the other parts too

Sasha Gusev

@SashaGusevPosts

2 months

Pro tip: if you don't like a certain theory you can just call it a fallacy, and if you say it enough times they'll put it in the opening remarks of a text book!

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Richárd

@krichard1212

2 months

Dutch psychmetrics is just on another level tbh. They have many bangers like this

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Richárd

@krichard1212

2 months

I'm cooked(ofc Plomin is author)

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Richárd

@krichard1212

10 months

I thought that people parroting "logical fallacies" were bad, but oh boy. The people who learn causal inference from racist twitter are the worst. "conditioning on a collider", "selection effect", "range restriction", "sampling error", all used in the wrong context.

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Richárd

@krichard1212

6 months

Psychologist: Heritability is a population parameter, it doesn't apply to individuals, it cannot hurt you. Subject-specific heritability:

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Richárd

@krichard1212

7 months

I have to write about 85% of my thesis, code a pacman clone from scratch in a programming language I do not know, design a network architecture, and relearn a semester's worth math for an upcoming exam all by the end of november. Can anyone recommend good series/anime/whatever?

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Richárd

@krichard1212

7 months

Another confirmation of the falling validity over time. Flynn effect or better studies? We may never know

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Richárd

@krichard1212

7 months

Non cognitive predictors are pretty stable over time

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Richárd

@krichard1212

1 month

Nevermind, I was the one who cooked instead. Easiest exam of my life.

Richárd

@krichard1212

1 month

Taking the exam rn, I'm so cooked

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Richárd

@krichard1212

5 months

Remember folks, IQ tests always predict outcomes. If they do not, then it's not an indictment of IQ,but the system. /S

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Richárd

@krichard1212

11 months

At this point I could write a whole book about the flaws of IQ testing, and the self-contradictions of the g-theory.

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Richárd

@krichard1212

11 months

IQ realists explain this.

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Richárd

@krichard1212

7 months

"Fluid intelligence measures how fast one can learn novel information" Doubt it.

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Richárd

@krichard1212

10 months

Hold up I'm cooking a blog post rn.

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Richárd

@krichard1212

5 months

"Differences in Parenting Behavior are Systematic Sources of the Non-shared Environment for Internalizing and Externalizing Problem Behavior" Measured home environment once again explains a major part of the E component.

Differences in Parenting Behavior are Systematic Sources of the Non-shared Environment for Intern...

Behavior Genetics - Although there is evidence for non-shared environmental links between parenting and problem behavior, so far, age-, informant-, and parent-specific patterns for both...

link.springer.com

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Richárd

@krichard1212

2 months

Psychologist #1 who disagrees with me on IQ: "I know you are super reasonable and knowledgeable on the topic so just thought I would reach out" Psychologist #2 who disagrees with me on IQ: "Despite knowing about your bad reputation, I'm still interested in your criticism"

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Richárd

@krichard1212

3 months

A not often appreciated fact: Psychometricians of his time literally ignored all of his work, the only people who worshipped him were random nonquantitative psychologists. Racists started worshipped him because of conclusions, not because of his methods.

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Richárd

@krichard1212

1 month

Just wasted 5 mins of valuable study time by reading a long "debunking" by a HBDer, just to be sure I "wasn't being misled" by the OP's summary. What a surprise, I wasn't.

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Richárd

@krichard1212

8 months

This is actually a very important point. Hereditarians will actually slow down genetics research if they manage to creep out the participants.

Sasha Gusev

@SashaGusevPosts

8 months

@davidhughjones @cremieuxrecueil In my work, I try to advocate for the UK Biobank model of large germline data collection and broad sharing. Now I have to explain why UKBB participants are being told that second-born kids are destined to marry spouses with "bad genes".

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Richárd

@krichard1212

9 months

@ariksu1 @littmath ? ChatGPT is wrong even with your prompting as evidenced by your link.

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Richárd

@krichard1212

9 months

Fun fact Jensen admitted that g/IQ was not predictive of learning speed with practice, but he handwaved it away by making up 2 systems of learning, a "fast" one which encompasses "catching on", and a slow one which is basically long term schooling. Without evidence btw.

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Richárd

@krichard1212

8 months

Fun fact if you make 2 groups (<90IQ and >110IQ), and then do a MGCFA, measurement invariance fails due to the Spearman's law of diminishing returns. The only reasonable conclusion is that group means cannot be compared due to the MI violation, IQ differences don't exist.

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Richárd

@krichard1212

3 months

Of course there is Anki, an open source SRS software. It's amazing, Don't get me wrong, but if we take research seriously, it's very badly optimized. Supermemo is developed by a genius crank, algorithm is black-box. Duolingo/memrise are for-profit.

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Richárd

@krichard1212

8 months

My favorite thing about iq worshippers is that if their models are contradicted by empirical data, then they make up nonexistent methodological psychometric limitations or even straight up reject the fundamentals of psychometrics.

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Richárd

@krichard1212

3 months

I'm gonna reveal a secret: A person can be smart at topic A, while being dumb at topic B. Even if you accept the g-factor theory of intelligence, which is a cringe take if you're familiar with the data.

taf 🝮

@tafphorisms

3 months

It’s funny to me how many people will call an intelligent person dumb, just because they disagree with that person. If you think you’re smarter than Elon Musk or Ben Shapiro but you work a dead end job after graduating from some crappy college, you’re delusional.

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Richárd

@krichard1212

7 months

Intelligence doesn't predict improvement in a complex learning task example number #897

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Richárd

@krichard1212

4 months

Hereditarians be like:

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Richárd

@krichard1212

5 months

"IQ research/behavior genetics is not political"

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Richárd

@krichard1212

5 months

I just gave IQ as an example of ordinal measurement for my stats exam.(I will have to debate the prof for the A if I fucked up even just 1 other question)

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Richárd

@krichard1212

11 months

Me, who failed 10th grade math(almost twice!), and now got the best score out of everyone in uni level proof based discrete math: Hmmmmmmm

Charles Murray

@charlesmurray

11 months

I would have thought this was completely uncontroversial. All except a few geniuses who persist in taking math courses reach a point when they say to themselves "I can't understand this no matter how hard I try." Some people reach it in sixth grade; others in high school; others

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Richárd

@krichard1212

7 months

Change in grades is not heritable, but has a statistically significant shared environmental variance, therefore the hypothesis that "it's just noise" is incorrect

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Richárd

@krichard1212

6 months

Unironically this. The hereditarian hypothesis grows weaker everyday if one takes genomic methods seriously. However the known environmental variables account for a miniscule amount of IQ variation. (except for basic education)

zhil

@zhil_arf

6 months

you know what's a doable and great human experimentation? Gifted schools for "low IQ" people. Find 2000 "low-IQ" people from disadvantaged / discriminated / impoverished communities, give them scholarship to a free 12 years of ultra high quality education and environment

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Richárd

@krichard1212

3 months

@lu_sichu Go to Lasker's rpubs, look at his "just one g" meta analysis and search for his take on POT,Kovacs,Conway. Cremieux on twitter acts nice, but he literally think Conways,Kovács are incompetent. He just doesn't say so, because they agree...for now

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Richárd

@krichard1212

2 months

Looks like the positive manifold is partly caused by the educational infrastructure

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Richárd

@krichard1212

13 days

I'm crying out of laughter. -56% heritability is in line with 90% heritability(the mean age in this study is 42) -Hungarian education is meritocratic(the value added by different schools is huge here, unlike in the USA/UK!) -"SES is noncausal, it's just an indicator of genes"

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Richárd

@krichard1212

9 months

"X more years"

Bo Winegard

@EPoe187

9 months

My bold prediction is that at some point in the near future, most serious thinkers will accept the hereditarian hypothesis as the default hypothesis because the evidence will be overwhelming. At that point, heresy will be mainstream--and most will wonder what the fuss was about.

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Richárd

@krichard1212

8 months

@lu_sichu @thebirdmaniac @SashaGusevPosts @galtonboards @Sean__Last @AporiaMagazine @KirkegaardEmil Fixed your ruler

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Richárd

@krichard1212

1 month

Let's go through Werkat's claims one by one. A thread ig.

Charles Angleson

@SBAbsolutist

1 month

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Richárd

@krichard1212

2 months

Guess whether this section is written by: 1. HBD guy 2. Mainstream IQ researchers

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Richárd

@krichard1212

7 months

Science blackpill

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Richárd

@krichard1212

28 days

Should I make a YouTube channel?(keep in mind that my accent is terrible)

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Richárd

@krichard1212

4 months

No it doesn't

Alice Ēarendel -- Fae/acc

@kymeriandawn

4 months

The uncanny valley implies that at one point we had a need to avoid creatures that looked like humans but weren't.

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Richárd

@krichard1212

6 months

how tf can one be a genetic determinist and believe in mewing at the same time?

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Richárd

@krichard1212

8 months

I can't stand horrible arguments, even if the conclusion favors my worldview

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Richárd

@krichard1212

2 months

!!!

Kevin McGrew (aka Kdizzle & IQ McGrew)

@iqmobile

2 months

#intelligence #networkmodels #psychometricnetworks #genetics

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Richárd

@krichard1212

8 months

Behavior genetics association when its members are publishing scientifically inaccurate, sensationalist books: Sleep BGA when some twitter randos say out loud what the significant amount of its members believe: real shit, let's create a "Public Science Committee" to combat this

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Richárd

@krichard1212

1 year

Modern intelligence research still doesn't understand what heritability means. There is a reason why most research is being done by econometricians in the field nowadays.

Richard Haier

@rjhaier

1 year

This is modern intelligence research.

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Richárd

@krichard1212

6 months

Information is more g loaded than reasoning. Basic math is more g-loaded than advanced mathematics.

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Richárd

@krichard1212

2 months

*claims that interactions are absent* "I computed the factor scores and compared their 4th order moments, but no I'll not show the results, just trust me" ok dude.

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Richárd

@krichard1212

5 months

Many rules in video games are objectively much more complicated than even the hardest High-School level math concepts. Yet almost every player manages to master them, but only a fraction of students master the hardest math concepts. Someone explain?

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Richárd

@krichard1212

4 months

Plomin in 2023. Doesn't even entertain alternative explanations for the missing h^2.

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Richárd

@krichard1212

3 months

@lu_sichu My point is not that Conway and POT are wrong btw. My point is that Cremieux is two-faced, and his criticism doesn't make any sense. Also everything Gusev said is correct.

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Richárd

@krichard1212

19 days

Doesn't it bother the g-men that the Ritchie et al 2015 and Lasker&Kirkegaard studies couldn't extract g as a third order factor because they didn't have enough tests to model second order factors, and therefore the analysis is not on the level of "pure g"?

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Richárd

@krichard1212

4 months

So let's get it straight: - IQ doesn't predict learning speed - IQ doesn't predict how much IQ you gain from an additional year of schooling -IQ is stable -Knowledge is stable -IQ doesn't predict knowledge gain/loss Phenotype->Environment models make the most sense here.

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Richárd

@krichard1212

7 months

Greater educational quality always seems to reduce absolute variance. Standardizing these estimates would mistakenly imply that genes are more important in higher quality environments.

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Richárd

@krichard1212

4 months

@genomerambler

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Richárd

@krichard1212

9 months

Prepare to be disappointed, here is the first ever post on my blog.

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