October 1990 PMID 2218526

Sources of human psychological differences: the Minnesota Study of Twins Reared Apart.

T J Bouchard, D T Lykken, M McGue, N L Segal, A Tellegen

Mentions

191
Peak: 16 in Dec 2023
across 6 sources since Dec 2019

Extended reach

590,999
potential audience

Total likes

521

Video views

7,154

Mentions per month

Dec 2019 – Sep 2025

Where it's discussed

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AI synopsis

What people are saying

Some discussions highlighted key findings such as the heritability of IQ and other psychological traits, with commenters using phrases like 'evidence for the strong heritability' and '70% of IQ variance attributed to genetics.' The tone varies from enthusiastic endorsement of genetic influences to critical skepticism, underscoring a nuanced dialogue around the impact of genetics versus environment in shaping individual differences.

AgreementModerate agreement

Many discussions reflect a shared acceptance of the study's conclusion about the genetic basis of psychological differences, although some express skepticism.

InterestHigh interest

The discussions exhibit a high level of curiosity and debate about the findings, with many users eager to reference and analyze the original publication.

EngagementModerate engagement

While posts engaged in discussing methodologies, not all showcased high depth, as some focused on surface-level reactions.

ImpactHigh impact

There is a strong belief among users that the study's findings have significant implications for understanding human psychology and intelligence.

Abstract in brief

  • A long-term study of over 100 sets of twins and triplets raised apart showed that about 70% of IQ variance can be attributed to genetic differences.
  • Monozygotic twins raised apart exhibit similar personality traits and interests as those raised together, indicating a strong genetic influence on psychological traits.
  • While genetics plays a significant role in psychological differences, this does not undermine the importance of parenting and education in a child's development.

Top posts

Most liked on X and Bluesky
i/o research
@iointelresearch · X

The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal chance of being similar to the co-twin in terms of personality, interests, and attitudes as one who has been reared with his co-twin. https://t.co/3PBXUlCTt2

Dec 8, 2023 · 100 likes · 19 shares · 23,345 followers View post →
David Bessis
@davidbessis · X

@oconick1 Bouchard's 1990 study on "twins reared apart" is a disgrace. It's either plain stupid, or scientific fraud. @ScienceMagazine should investigate @jayjoseph22's claim that the authors hid key fraternal twin data. If they did, the paper should be *retracted*. https://t.co/iZlK1NnrG1

Sep 14, 2024 · 21 likes · 3 shares · 9,199 followers View post →
Franck Ramus (compte déserté)
@FranckRamus · X

Deuxièmement, vous dénoncez les résultats de Burt, mais vous omettez de mentionner que, même s'ils étaient sans doute en partie inventés, ils ont été répliqués par de multiples études, par exemple celle du Minnesota: https://t.co/sCRstWrjRV

Nov 11, 2022 · 12 likes · 13,709 followers View post →
Jay Joseph @jayjoseph22.bsky.social
@jayjoseph22 · X

@ToyeSodade @CathrynTownsend What about the possibility of retracting a very famous twin study, often cited by the HBD crowd, whose authors had to suppress and omit their control group data in order to arrive at their desired "strong heritability of IQ" conclusion? @RetractionWatch https://t.co/u8qybNfDng

Dec 30, 2020 · 9 likes · 2 shares · 3,436 followers View post →
dialecticbio.bsky.social
@DialecticBio · X

sus

Apr 18, 2023 · 7 likes · 1 share · 5,290 followers View post →
Colby Cosh
@colbycosh · X

@ragcast @paulg @cremieuxrecueil Your guess is incorrect. https://t.co/m5b0MKtOcg

Apr 16, 2023 · 6 likes · 13,219 followers View post →

All mentions

Max Strakhov
@mannoroch · X

@e1ectric_hyena @GoldmanDesu @tverdohlebushek @andrey_pesatsky Да-да, ничего-то мы не знаем и ничего-то не допустимо. https://t.co/7Py2yuJRNk

Sep 19, 2025 · 2,158 followers View post →
t
@xb7 · X

@RakoonGamer2001 @JackPosobiec here's just one "link" https://t.co/XKsz0n4X0Y there are many others - Summary statement about genetics/DNA: "evidence for the strong heritability of most psychological traits" (behavioral traits for those who can't google)

Aug 9, 2025 · 1 like · 608 followers View post →
aa
@Mmnnqqwwee · X

@pamelasm @Acabrockyy @KillerAceUSAF @agraybee @AlphEatsCats https://t.co/lGQULtTVWB https://t.co/h3lvruNt4n https://t.co/3VJVARc8aE You dont have to believe me, just read these. All of these say that its 0.75 or higher so i guess the first guy was right and i was lowballing it my bad g.

Jul 31, 2025 · 1 like · 2 followers View post →
Bit Paine ⚡️
@BitPaine · X

@sandro955 @RnaudBertrand Citation: Bouchard, T. J., Lykken, D. T., McGue, M., Segal, N. L., & Tellegen, A. (1990). •Title: Sources of human psychological differences: The Minnesota Study of Twins Reared Apart •Journal: Science •DOI: 10.1126/science.2218526 •Citations: ~5,000+ •Key Findings:

Jul 30, 2025 · 2 likes · 49,999 followers View post →
Shavetail Louie
@SchmukQatarlson · X

@VladimirSuvor Bouchard, T. J., Lykken, D. T., McGue, M., Segal, N. L., & Tellegen, A. (1990). Sources of human psychological differences: The Minnesota Study of Twins Reared Apart. Science, 250(4978), 223–228. https://t.co/3xCNicaJHG

Jul 21, 2025 · 3 likes · 1,560 followers View post →
Kele Diabate
@kelediabate · X

@Margueritestern Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart (1990) : https://t.co/XMwWtQSOQN

Jul 11, 2025 · 1 like · 150 followers View post →
Anno Dryseagacker
@dryseagacker · X

@Empty_America @wil_da_beast630 “Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart” (1990), by Thomas J. Bouchard Jr, David T. Lykken, Matthew McGue, Nancy L. Segal and Auke Tellegen | Embryo Project Encyclopedia https://t.co/81aHSii6sQ

Jun 29, 2025 · 139 followers View post →
nightnight
@nighnight33 · X

@kaliyuga_surfer dont know about better or not but ur genetic history affects almost everything; more than parenting or environment across intelligence, personality, and behavior https://t.co/2cLBNyoggv

Jun 28, 2025 · 3 likes · 1 share · 46 followers View post →
SuperiorMorals
@UnkownMorals · X

@EartherGraduate @Thumeros @ARLAINTS @grok @avaricum777 https://t.co/lO7nnCHGbq https://t.co/9OVrM85kRQ Thank you for your patience, here we have two studies showcasing the heritability and genetic nature of IQ(Intelligence). Safe to say that if it's genetic, then the IQ of Africans is also a genetic reality rather than environmental.

Jun 11, 2025 · 1 like · 16 followers View post →
Anonymous
@PPosition · X

@MASolarborum @79Salao https://t.co/nGXID8J19e

May 22, 2025 · 280 followers View post →
Bobby Fischer
@UndeadGroyper · X

@KommonOrigin @Uncommonsince76 All these scientific studies say you’re wrong. https://t.co/zF2VPyTK5i https://t.co/aN7MZ2rFjv https://t.co/Ov9L04p88e https://t.co/J4ll753y1e https://t.co/MZw7XhWJxz

May 18, 2025 · 137 followers View post →
Qetuo-p
@byihjgvb7499672 · X

@rebelhasaura @TheSpaniarAHTR Racial twin adoption studies prove this wrong though (Sources of human psychological differences: the Minnesota Study of Twins Reared Apart by Thomas J. Bouchard, cited over 2000 times). We are not equal, never will be.

May 3, 2025 · 1 like · 63 followers View post →
Peat Whisperer
@soydown · X

@CdmxCiudad Hombre... si quieres, sabiendo que ni lo vas a leer, te pego captura de todas las páginas. Toma, ridículo: "Sources of Human Psychological Differences: the Minnesota Study of Twins Reared Apart." Science 250 (1990): p. 223–228.

Apr 18, 2025 · 1 like · 231 followers View post →
because kim said so (she/her)
@kim_because · X

@magicaltime123 @Akinyemisback @_Truthster @A_Damned_mk2 @WooWooSpaceJew @MeMaraCass @TheWayTheTruthX @Bumpalump99 @downs1nthehouse @godrottdot1 @timmbosliceeee @merhart2112 @Raven4212 @Simple_Shaman @Melanie33720945 @1pckt @horusrage @AtheistsAssembl @SecularSmurf @GaryHeron2 @JPopiden55707 @Atroe_Cious @VaxxCauseSIDS @Wolfpak561 @gmcnuggetz @1Quetzalcoatl1 @TBRagsdale1 @enitas13 @MindfulDamage @angusintheditch @_Woobie @YouKneelToZod @pray2pesci @islandsky72 @ScientiaPercept @JudyM32174 @2col6 @LordLaneus @OddBackgrowy @TheCookieSavior @BillyBhold @Messenger_187 @Galacton2 @kali8989 @IrisB42744268 @KuriousChristos @MilesMosley6662 @thewordroomyt @james_jabroni The Minnesota Twins study was a landmark piece of research, in which they conducted a longitudinal study of identical twins separated at birth and raised in different families. Their tentative conclusions was, in fact, about 50/

Apr 17, 2025 · 1,198 followers View post →
Jac Celf
@CelfJa73446 · X

@feathercolibri @PierroLaO1 @Gen_Sank Plomin, R., Deary, I. J. (2015). Genetics and intelligence differences: five special findings. Molecular Psychiatry, 20, 98–108. Bouchard, T. J. et al. (1990). Sources of human psychological differences: the Minnesota Study of Twins Reared Apart. Science, 250(4978), 223–228.

Apr 14, 2025 · 10 followers View post →
TitusSolMagnus
@TitusSolMagnus · X

@TheoFruitier @Ian_031_ @Yohdono @Ad_Vitam44_ https://t.co/kDYJwwVpiG Il est peut-être temps de s'intéresser à la science quand on parle de science non?

Mar 28, 2025 · 515 followers View post →
CoalRaven
@coal_raven · X

RT @JeReinforme: Source : https://t.co/emmM3dDbon

Mar 23, 2025 · 2 shares · 725 followers View post →
LEBRUN Liz
@Liz131975 · X

RT @JeReinforme: Source : https://t.co/emmM3dDbon

Mar 22, 2025 · 2 shares · 1,924 followers View post →
Je Réinforme
@JeReinforme · X

Source : https://t.co/emmM3dDbon

Mar 22, 2025 · 2 likes · 2 shares · 23,316 followers View post →
hull_wifi447
@hullwifi44766 · X

@pytagorean666 > In order for that identity to rematerialize in the proper way, it requires a host that is of the same biological species, sex, and race. trivial cases can be observed in monozygotic twins separated at birth and reared by separate, distant families https://t.co/iLH7zXs63b

Jan 6, 2025 · 615 followers View post →
bᛟbini
@pin0cheat · X

@UltimaThule1000 @xCryptoEmpire @BostonTea84 ...podobnie między rodzicami i dziećmi (odsyłam do krzyżówek ponownie). Za to nie ma różnic między bliźniakami jednojajowymi wychowywanymi w różnych warunkach (Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart)

Dec 19, 2024 · 106 followers View post →
bᛟbini
@pin0cheat · X

@xCryptoEmpire @BostonTea84 @UltimaThule1000 https://t.co/uTDr6ANmVb to nie teza tylko fakt potwierdzony badaniami. Luknij na to podlinkowane, i na to: Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart

Dec 19, 2024 · 106 followers View post →
Al Be
@Al_Back_Be · X

RT @iointelresearch: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal…

Dec 2, 2024 · 19 shares · 6 followers View post →
Rectum Domini
@ZbrukanyOdbyt · X

@MortTheMortal @mirrex69 @celebert4321 @ManiaPendragon @OliwiaGako20163 Thomas Bouchard (1990) – “Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart”

Nov 6, 2024 · 5 likes · 16 followers View post →
Kindly #deprescribe -- taper psychiatric drugs
@Altostrata · X

RT @davidbessis: @oconick1 Bouchard's 1990 study on "twins reared apart" is a disgrace. It's either plain stupid, or scientific fraud. @Sci…

Sep 21, 2024 · 3 shares · 6,471 followers View post →
MingoMangoTango
@MingoTango · X

@ScottRagan @bobbyorbust @BasedTorba For someone who purportedly used this in the classroom, you sure missed this major conclusion of his … https://t.co/tjHGWccVEP

Sep 20, 2024 · 271 followers View post →
Emanuel v. Kienlin
@evkienlin · X

@wise_d_guy @HandsomeVb @CScharun Here you don't go: Bei Bouchard et al, 1990, wurden die Zwillinge zwar getrennt, sind aber im gleichen Kulturkreis aufgewachsen. https://t.co/lzpMgQlBFT

Sep 16, 2024 · 146 followers View post →
Shae McLaughlin
@shae_mcl · X

RT @davidbessis: @oconick1 Bouchard's 1990 study on "twins reared apart" is a disgrace. It's either plain stupid, or scientific fraud. @Sci…

Sep 15, 2024 · 3 shares · 2,251 followers View post →
Sultan
@Sultanq880 · X

لمن يريد الاطلاع على الدراسة: https://t.co/Do9MyDu8oh

Sep 15, 2024 · 4 likes · 13,069 followers View post →
Suhaib Zafar
@suhaib_zafar · X

RT @davidbessis: @oconick1 Bouchard's 1990 study on "twins reared apart" is a disgrace. It's either plain stupid, or scientific fraud. @Sci…

Sep 14, 2024 · 3 shares · 831 followers View post →
David Bessis
@davidbessis · X

@oconick1 Bouchard's 1990 study on "twins reared apart" is a disgrace. It's either plain stupid, or scientific fraud. @ScienceMagazine should investigate @jayjoseph22's claim that the authors hid key fraternal twin data. If they did, the paper should be *retracted*. https://t.co/iZlK1NnrG1

Sep 14, 2024 · 21 likes · 3 shares · 9,199 followers View post →
Rohan
@Rohanburdened · X

@JxnW @SangerPilled of the varience isnt likely to be due to the social environment but due to epigenetic differences. The concordane rates for a bunch of personality traits dont change that much if identical twins are raised apart vs together https://t.co/m41YB42gDv https://t.co/IHj4KqHPGw

Aug 28, 2024 · 491 followers View post →
しんや
@Shinnnnnxn · X

ここらへんか ・Sources of human psychological differences: The Minnesota Study of Twins Reared Apart. Science, 250(4978), 223-228. ・Plomin, R., & DeFries, J. C. (1998). The genetics of cognitive abilities and disabilities. Scientific American, 278(5), 62-69.

Jun 14, 2024 · 51 followers View post →
Longevity
@LongevityTao · X

Since 1979, a continuing study of monozygotic and dizygotic twins, separated in infancy and reared apart, has subjected more than 100 sets of reared-apart twins… https://t.co/VYU88tfWMu

Jun 2, 2024 · 328 followers View post →
Toon Noppen
@ToonNoppen · X

@milachka2001 @benwilbrink @TCanegem @FeysRaf "Joseph has violated the ‘total evidence rule’ (Lubinski, Reference Lubinski2000, p. 443). He has fooled himself. His work is not science — it is, to use Feynman’s term, pseudoscience." https://t.co/0suOoso5hi https://t.co/icV2DGZ1eu https://t.co/P87tUrOjFQ

Jun 1, 2024 · 1 like · 157 followers View post →
The Reduct Blog
@reduct_blog · X

@DrugGovoruna Stancil is the typical Prog clown. The man who wants to “decarbonize everything” (see here: https://t.co/e1DmcSuBTC)

Apr 17, 2024 · 204 followers View post →
Dad Matters
@dadmatters_uk · X

@AllyFogg @s7c20 @TheTinMenBlog @ABLawman @alattice2 @CCriadoPerez @MBCoalition Watch it at your leisure. Buy her book. Read the USA study. Whatever takes your fancy. But be prepared to feel deeply uncomfortable with your orthodoxy. It’s built on sand.. The twins reared apart study https://t.co/iN2YXkYE5H

Apr 5, 2024 · 1 like · 2,762 followers View post →
Roald Amundsen
@JohnTrent120911 · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Feb 25, 2024 · 19 shares · 18 followers View post →
Roald Amundsen
@JohnTrent120911 · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Feb 3, 2024 · 19 shares · 18 followers View post →
Stefan in Ky
@StefanKy · X

@BronskiJoseph About 70% of IQ is genetic, most personality traits are also mainly genetic, see Bouchard TJ Jr, et al Sources of human psychological differences: the Minnesota Study of Twins Reared Apart. Science. 1990 Oct 12;250(4978):223-8. PMID: 2218526.

Dec 18, 2023 · 1 like · 126 followers View post →
MGaussage
@MGaussage · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 9, 2023 · 19 shares · 5,505 followers View post →
Ivan Majnarić
@bajsrotor113 · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 13 followers View post →
FVBirder
@fvbirder · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 201 followers View post →
Veritas
@Veritetas · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 55 followers View post →
Charles Bayless
@CharlesBayless · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 364 followers View post →
Dr. Edward Trausti
@Alfred_The_Okay · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 14 followers View post →
Pureza y peligro
@przyplgr · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 538 followers View post →
Tom
@nachtfalter_05 · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 179 followers View post →
Toon Noppen
@ToonNoppen · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 157 followers View post →
Anthony Brink
@AnthonyBrink_SA · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 1,572 followers View post →
sterling sorbet
@expeedee · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 1,276 followers View post →
Jeff
@FarmerJeff252 · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 360 followers View post →
Ice Age Animist
@IceAgeAnimist · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 179 followers View post →
Leo von Klenze
@LeoKlenze · X

RT @PaoloShirasi: The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal ch…

Dec 8, 2023 · 19 shares · 308 followers View post →
i/o research
@iointelresearch · X

The Minnesota Study of Twins Reared Apart found that an identical twin reared away from his co-twin has about an equal chance of being similar to the co-twin in terms of personality, interests, and attitudes as one who has been reared with his co-twin. https://t.co/3PBXUlCTt2

Dec 8, 2023 · 100 likes · 19 shares · 23,345 followers View post →
Silver Fox Study
@SalientQuips_ · X

@OilfieldSlang @Steve_Sailer @therecount Behavior is ~75% genetic https://t.co/xWvDbIylWD

Nov 29, 2023 · 1 like · 541 followers View post →
Virgu ☕
@Virgurilla · X

@oneeyedsnake64 @1millionspiders @theserfstv Red makes us feel anger, green makes us feel relaxed. You can isolate a person from society and these responses or "behaviours" towards color would persist Also there was a study done in twins that grew up in different families. Sorry it's behind a paywall https://t.co/ckg3FUyw1j

May 12, 2023 · 521 followers View post →
John Doe
@hicadude · X

RT @DialecticBio: sus

May 10, 2023 · 1 share · 46 followers View post →
dialecticbio.bsky.social
@DialecticBio · X

sus

Apr 18, 2023 · 7 likes · 1 share · 5,290 followers View post →
Crémieux
@cremieuxrecueil · X

@CirclEdgeInc The Jensen source is a book chapter: https://t.co/lbd11zlOus The Minnesotan data is from Bouchard et al.: https://t.co/SfaMxgoOgb

Apr 16, 2023 · 2 likes · 271,918 followers View post →
Colby Cosh
@colbycosh · X

@ragcast @paulg @cremieuxrecueil Your guess is incorrect. https://t.co/m5b0MKtOcg

Apr 16, 2023 · 6 likes · 13,219 followers View post →
Franck Ramus (compte déserté)
@FranckRamus · X

Deuxièmement, vous dénoncez les résultats de Burt, mais vous omettez de mentionner que, même s'ils étaient sans doute en partie inventés, ils ont été répliqués par de multiples études, par exemple celle du Minnesota: https://t.co/sCRstWrjRV

Nov 11, 2022 · 12 likes · 13,709 followers View post →
She_Persisted
@Impeach_Cheeto · X

@geostylegeo Exactly none. 0% https://t.co/qxCe5eL5Jv

Oct 13, 2022 · 1 like · 10,291 followers View post →
Hanum Larasati Kusumodiningrat
@Mpok_Hanum · X

RT @condensedbold: @Cittairlanie Parents’ Emotion-Related Beliefs Predict Children's Recog.of Emotion https://t.co/BjGrAoWVoC Sources of H…

Aug 22, 2022 · 3 shares · 1,946 followers View post →
Đồng chí Aya / Yến ☭
@Fayalet · X

RT @condensedbold: @Cittairlanie Parents’ Emotion-Related Beliefs Predict Children's Recog.of Emotion https://t.co/BjGrAoWVoC Sources of H…

Aug 21, 2022 · 3 shares · 12,610 followers View post →
Gill Sans
@condensedbold · X

@Cittairlanie Parents’ Emotion-Related Beliefs Predict Children's Recog.of Emotion https://t.co/BjGrAoWVoC Sources of Human Psychological Differences https://t.co/bTOerHwjZm Personality resemblances in adoptive families when the children are late-adolescent or adult https://t.co/l2mTWKnV15

Aug 21, 2022 · 2 likes · 3 shares · 972 followers View post →
Camille Kerb ☧
@CamiyKrab · X

@CosmicDD @LaBaronneuh @Noemie80045361 @BastosP8 Bonjour madame. Non. https://t.co/yHNdG6P1cT

Aug 6, 2022 · 199 followers View post →
bluemage
@bluemage16 · X

@kox1941 @FittingMechani1 @StefanFSchubert @Nrg8000 It's famous enough a simple search would find it for you. But here, monozygotic twin study, one of the gold standards in research: https://t.co/2TeoAcWpfB

Jun 11, 2022 · 5 followers View post →
Dominic | Atlantus
@DominicAtlantus · X

@johannes9126 @who_is_Annett Hier noch ein paar spannende Links die sie Aufklären sollten https://t.co/PKO1JLsvsf https://t.co/vLkr1Cwxki https://t.co/9EkUUdwzvk https://t.co/4L4JnfPYxC https://t.co/ERcOMIacLe

Feb 21, 2022 · 10 followers View post →
Jay Joseph @jayjoseph22.bsky.social
@jayjoseph22 · X

1/ In Bouchard's famous 1990 Minnesota Study of Twins Reared Apart IQ study (Science magazine), reared-apart DZ twin (DZA) control group correlations (r's) were omitted "due to space limitations and the smaller size of the DZA sample (30 sets)." https://t.co/u8qybNfDng https://t.co/xuv1Wh5cYb

Sep 9, 2021 · 1 like · 3,436 followers View post →
Tjerk Muller
@TjerkMuller · X

@jasonwalters85 Ik ben toch benieuwd waar je dat 'vrijwel identiek' op baseert, want in een bekende studie van Thomas Bouchard e.a., 'Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart', (Science, 1990) lees ik toch echt iets anders. https://t.co/V1dNugiO07

Jul 23, 2021 · 595 followers View post →
Jean-François Gariépy
@JFGariepy · X

@jayjoseph22 @HowethLewis Here's 8 twin studies, showing that your count of 6 is wrong. And since you misrepresent my beliefs, you're blocked. https://t.co/CHVkNkVUnI https://t.co/i0W4CSmTMj https://t.co/oJ5XDSLTKu https://t.co/i9mXOh6biM https://t.co/MT3RpyEIJj https://t.co/u48TuWmk1E

Jul 5, 2021 · 68,407 followers View post →
SCIENCE-FACTS
@Petei123 · X

@rdsgonnagetyou @ScottAdamsSays Are races equal? IQ is 70% genetics. https://t.co/IPZtVVDpwu

Jun 19, 2021 · 551 followers View post →
SCIENCE-FACTS
@Petei123 · X

@lmcheifetz Genetics explain 70% of IQ. You haven't noticed yet, I am telling you ACCEPTED SCIENCE. CDC>NIH>HHS> https://t.co/IPZtVVDpwu

Jun 11, 2021 · 551 followers View post →
SCIENCE-FACTS
@Petei123 · X

@JoyAnnReid One tenet of CRT is, 'All people are equally endowed and so the only reason of inequitable outcomes is racism. ...but Human Genome Project shows human DNA varies over 12% worldwide and success (IQ) is 70% hereditary (Minnesota Twins Testing). CDC>NIH>HHS> https://t.co/IPZtVVDpwu

Jun 11, 2021 · 551 followers View post →
GhillieGuide
@Ghillie_Guide · X

RT @jayjoseph22: @ToyeSodade @CathrynTownsend What about the possibility of retracting a very famous twin study, often cited by the HBD cro…

Dec 31, 2020 · 2 shares · 3,483 followers View post →
RaceRealist
@Race__Realist · X

RT @jayjoseph22: @ToyeSodade @CathrynTownsend What about the possibility of retracting a very famous twin study, often cited by the HBD cro…

Dec 30, 2020 · 2 shares · 4,207 followers View post →
Jay Joseph @jayjoseph22.bsky.social
@jayjoseph22 · X

@ToyeSodade @CathrynTownsend What about the possibility of retracting a very famous twin study, often cited by the HBD crowd, whose authors had to suppress and omit their control group data in order to arrive at their desired "strong heritability of IQ" conclusion? @RetractionWatch https://t.co/u8qybNfDng

Dec 30, 2020 · 9 likes · 2 shares · 3,436 followers View post →
Jay Joseph @jayjoseph22.bsky.social
@jayjoseph22 · X

RT @jayjoseph22: How about "concern" re this ultra-famous "reared-apart" twin study as well, where the control group results (DZAs) were su…

Oct 25, 2020 · 2 shares · 3,436 followers View post →
Jay Joseph @jayjoseph22.bsky.social
@jayjoseph22 · X

How about "concern" re this ultra-famous "reared-apart" twin study as well, where the control group results (DZAs) were suppressed in order to arrive at the desired "strong heritability of IQ" conclusions. https://t.co/u8qybNfDng https://t.co/orTFmwMM9e https://t.co/157C7iDntS https://t.co/cEryksVCS0

Oct 25, 2020 · 4 likes · 2 shares · 3,436 followers View post →
Arainy
@memea1915 · X

@talicos @twitnewsaccount @OTMsuyaya @gogriffsgo32 @Ray_Velsaquez @decentbirthday If you're interested, here is a well-known one: https://t.co/BZQehXKuEm Essentially, twins reared apart (thus in different environmental conditions) were used to estimate an IQ heritability of about 0.7. To put that into perspective, the heritability of height is about 0.79.

Jul 16, 2020 · 118 followers View post →
Silahammer 4k
@SekretSila · X

@Mei_Ubermensch @NOMporvenir @PredicadorCrew Estudio de gemelos monocigoticos y dicigoticos separados en adopcion. 70% de la vatianza en CI explicada por factores geneticos, se tiende a converger en CI con los padres biologicos, no los putativos/tutores. https://t.co/dhV0je58ED

May 31, 2020 · 4,407 followers View post →
The GOD Himself
@TheGODHimself8 · X

@VeteranEU @feelsocleanlik1 But for instance https://t.co/6wxvLg1TYW estimates the cognitive ability heritability up to 80%. https://t.co/Q5HDrRdu3O 70%.

Mar 10, 2020 · 6 followers View post →
Candide III
@CandideIII · X

@C_Kavanagh @Steve_Sailer @_HelenDale @CathyYoung63 @EPoe187 @K_Niemietz (2/2) then for accepting funding from it. For instance, here's who funded the Minnesota study of twins reared apart 10.1126/science.2218526: Pioneer, Seaver Institute, UMinnesota grad school, Koch f., Spencer f., NSF, NIMH, National Institute on Aging, and Harcourt publishing.

Dec 22, 2019 · 800 followers View post →