June 2018 PMID 29891660

Flynn effect and its reversal are both environmentally caused.

Bernt Bratsberg, Ole Rogeberg

Mentions

471
Peak: 27 in May 2024
across 7 sources since Jan 2019

Extended reach

816,586
potential audience

Total likes

3,499

Video views

73,425

Mentions per month

Jan 2019 – Oct 2025

Where it's discussed

  • News244 articles
  • X / Twitter160 posts
  • Blogs33 articles
  • Reddit16 posts
  • Facebook11 posts
  • YouTube5 videos
  • Bluesky2 posts

AI synopsis

What people are saying

The discussions include references to key findings from the study, such as the claim that IQ scores have decreased within generations of the same families, emphasizing environmental factors rather than genetic ones. Phrases like “nothing you have said debunks it” and a strong focus on environmental conditions like ‘education system’ and ‘media’ illustrate the tone's urgency and seriousness about the decline in IQ. Furthermore, users sharing links to additional studies signal a desire for a deeper understanding, which contributes to the overall high interest and impact perception of the discussions.

AgreementModerate agreement

The majority of discussions seem to align with the core findings of the publication, suggesting a general acknowledgment of the environmental causes behind both the Flynn effect and its reversal.

InterestHigh interest

There is a high level of curiosity and relevance as many participants actively seek additional information and studies related to the publication.

EngagementModerate engagement

Though many discussions reference the publication, some participants focus more on personal opinions rather than delving into the methodologies or broader implications presented in the publication.

ImpactHigh impact

Many believe that the findings suggest significant implications for educational and social policies, as well as understanding societal intelligence levels.

Abstract in brief

  • Population intelligence quotients, known as the Flynn effect, rose throughout the 20th century but have recently seen a decline in several countries.
  • The study categorizes potential explanations for this trend based on their ability to account for variations in intelligence within families.
  • Using data from Norwegian military conscription over three decades, the research indicates that changes in intelligence can be explained by within-family differences, negating the influence of external genetic or environmental factors.

Top posts

Most liked on X and Bluesky
Marcos-FitRebelde
@FITrebelde · X

Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 124 likes · 23 shares · 98,737 followers View post →
gAstordis
@Hypershadsy · X

Среди причин перечисляются факторы окружающей среды, качество жизни, корректировка метрик оценивания и увлечение выборок на новые страны. К примеру: https://t.co/DoyIV0vBt7 2/3

Apr 2, 2025 · 36 likes · 2,294 followers View post →
Analyze & Optimize
@Outdoctrination · X

"The analysis controls for all factors shared by siblings and finds no evidence for prominent causal hypotheses of the decline implicating genes and environmental factors that vary between, but not within, families." https://t.co/xQRVHEwZtD

Jul 15, 2024 · 32 likes · 3 shares · 118,503 followers View post →
David Bergman
@David_M_Bergman · X

En välsignelse med mönstring är möjligheten att genomföra registerstudier. Flynn-effekten är trenden att IQ ökat succesivt under 1900-talet, en effekt som har planat ut & är på väg att vända. "Flynn effect and its reversal are both environmentally caused" https://t.co/C2675lG8qS

Apr 30, 2023 · 12 likes · 20,816 followers View post →
Barbara Collevecchio
@colvieux · X

Stiamo diventando tutti più stupidi per colpa della velocizzazione e perdita capacità del pensiero lento? Flynn effect and its reversal are both environmentally caused https://t.co/AR3O7wegzQ

Apr 20, 2020 · 7 likes · 42,897 followers View post →
Le Néandertal en costard
@HydrePrever · X

Confirmation bias at its best: this person cited the pnas paper "Flynn effect and its reversal are both environmentally caused" as a an argument for dysgenism. She probably stopped to read at "reversal" https://t.co/6RGQBKoFFK

Jul 28, 2020 · 6 likes · 3,204 followers View post →

All mentions

Path of wisdom
@streetknldge · X

Durante casi todo el siglo XX, el cociente intelectual (CI) fue subiendo generación tras generación.

Oct 27, 2025 · 1,039 followers View post →
dckonningstiga
@dckonnings99118 · X

@edzola9 @samuelb61407638 @slyman1264 @fra9670 @kevinblue345 Norway. And this was observed before any significant immigrant inflows btw. https://t.co/mBFv919kR9

Oct 23, 2025 · 2 likes · 611 followers View post →
Djsnsnnfnfmdmdbxzb
@Djsnsnnfnf1068 · X

@ItIsHoeMath @tadgh_dc Literally 0 evidence for this(post it if there is). the decline is visible even in the same families and it is environmental https://t.co/U4h5W3h5ku https://t.co/UPCfc9EqNz

Oct 3, 2025 · 1 followers View post →
Kronos Solostheverseฏ๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎
@KSolosthev33965 · X

RT @Djsnsnnfnf1068: @ItIsHoeMath @TiffaniMarie483 If that's true explain how black american iq has been increasing and that it is projected…

Oct 2, 2025 · 1 share · 34 followers View post →
Djsnsnnfnfmdmdbxzb
@Djsnsnnfnf1068 · X

@ItIsHoeMath @TiffaniMarie483 If that's true explain how black american iq has been increasing and that it is projected to increase in the future. Iq in africa has been Increasing over time. Are you going to ignore this because it goes against your feelings. https://t.co/ZvKIeMIP2W https://t.co/U4h5W3h5ku https://t.co/TenZQSXXoe

Oct 2, 2025 · 1 share · 1 followers View post →
Christopher Swoleumbus
@swoleumbus · X

@Frohen78 @biggusmaximus1 @avidseries ?? Besides everything he got wrong, you mean? What evidence? We've got nearly three decades of observations across the western world, but here are some DOIs for studies: 10.1073/pnas.1718793115 10.1016/j.paid.2005.01.029 10.1016/j.intell.2004.06.004 10.1177/1745691615577701

Sep 26, 2025 · 1 like · 261 followers View post →
Christopher Fishell
@chieffishell · X

People really are dumber and we have legacy media, political rhetoric, and a disaster of an educational system to thank. https://t.co/l8UnigMiz2

Sep 25, 2025 · 9,365 followers View post →
Rina Saltman
@rinatie_ceo · X

RT @rinatie_ceo: Flynn effect and its reversal are both environmentally caused | PNAS 更にガ━━━━(;゚д゚)━━━━━ン !! ❗️ https://t.co/NbUmwwemWj

Aug 27, 2025 · 1 share · 3,564 followers View post →
チル
@arigatou0815 · X

RT @kanair_jp: 検索すると、国別の論文などがでてくる。ノルウェーの例とか有名なようだ。 https://t.co/s4iRgEFwqW

Aug 27, 2025 · 1 share · 268 followers View post →
Rina Saltman
@rinatie_ceo · X

Flynn effect and its reversal are both environmentally caused | PNAS 更にガ━━━━(;゚д゚)━━━━━ン !! ❗️ https://t.co/NbUmwwemWj

Aug 27, 2025 · 1 share · 3,564 followers View post →
Ryota Kanai
@kanair_jp · X

検索すると、国別の論文などがでてくる。ノルウェーの例とか有名なようだ。 https://t.co/s4iRgEFwqW

Aug 27, 2025 · 3 likes · 1 share · 14,223 followers View post →
Natu
@Natuu14b · X

@Marinazzer https://t.co/kjxG1s04rj

Aug 20, 2025 · 86 followers View post →
Francisco Silva
@FCrispimSilva · X

@pol_pot1925 @enfermeira_a Já que gostas tanto de estudos... Explica este https://t.co/dfneCdL29R

Aug 11, 2025 · 6 followers View post →
笠井康平
@kasaikouhei · X

20世紀にかけて人類はますます賢くなったが、21世紀に入るとそうではなくなってきた疑いというのは、ある分野では合意形成が進みつつある学説みたいだ。「たぶん親の収入超せない僕たち」(山田航)が、知的資本でもそうなりつつあるのか。 https://t.co/bUobMuKc4c

Aug 10, 2025 · 2 likes · 1,743 followers View post →
Rigel
@R1ggell · X

@Anc_Aesthetics @bryan_johnson the iq decline is visible within generations of the same families across the world https://t.co/riQTf2lSN6

Aug 10, 2025 · 214 followers View post →
Rigel
@R1ggell · X

@ThomBrady5 The IQ decline is visible within generations of the same families https://t.co/gDTWiRNc4G

Aug 10, 2025 · 214 followers View post →
epic memer
@MemerEpic97811 · X

@JohnnyCase47 @clairlemon @VB_tins yes, it has https://t.co/oLe1iihaQS

Aug 2, 2025 · 55 followers View post →
David G
@DavidG30719513 · X

RT @JaMathiasen: @DavidG30719513 @grok @king_frostyyy11 @Queen_Shaylin @PostPositiveX @EndWokeness https://t.co/6TWGku94uV

Jul 31, 2025 · 1 share · 5,292 followers View post →
JaMathiasen
@JaMathiasen · X

@DavidG30719513 @grok @king_frostyyy11 @Queen_Shaylin @PostPositiveX @EndWokeness https://t.co/6TWGku94uV

Jul 30, 2025 · 1 like · 1 share · 11,183 followers View post →
Rigel
@R1ggell · X

@ItIsHoeMath "IQ is falling rapidly" based on what evidence? https://t.co/z2picwxHtE https://t.co/3zLTlbPTfe

May 22, 2025 · 214 followers View post →
Eleanor Maxwell
@EleanorMax43342 · X

@24CaratsOfGold @iwasnevrhere_ Is there a study for dysgenic fertility declining? The Flynn effect has only very recently reversed (2010ish across the anglosphere, depending on study). https://t.co/ynxgdnXwMO

May 7, 2025 · 162 followers View post →
287 25 377 249 - 287 312 689 938 - 13 4 10 20
@DavidVI6Seis · X

@Fantastiqvs Sources: - Bratsberg, B., & Rogeberg, O. (2018). "Flynn effect and its reversal are both environmentally caused". Proceedings of the National Academy of Sciences, 115(26), 6674–6678.

May 3, 2025 · 346 followers View post →
dckonningstiga
@dckonnings99118 · X

@Slavz39 @slyman1264 @JoKEas2 @Billcobber @manucho_bingi @Joe__Bassey There are studies on native Nordic populations which observed a decline on average IQ. This is from Norway, for example. https://t.co/mBFv918N1B Also, the decline is too pronounced to be explained solely by immigration anyways. Sweden being the notable Nordic exception.

Apr 25, 2025 · 2 likes · 611 followers View post →
Sr_Demagogia
@Sr_Demagogia · X

@AmicisLuz @JavierVillamor https://t.co/mXtIsgGp85 Sistema educativo, alimentación, tecnología..

Apr 20, 2025 · 63 followers View post →
Gabriel Belmar
@elareadebroca.bsky.social · Bluesky

Bratsberg, B., & Rogeberg, O. (2018). Flynn effect and its reversal are both environmentally caused. Proceedings of the National Academy of Sciences of the United States of America, 115(26), 6674–6678.

Apr 12, 2025 · 1 share View post →
gAstordis
@Hypershadsy · X

Среди причин перечисляются факторы окружающей среды, качество жизни, корректировка метрик оценивания и увлечение выборок на новые страны. К примеру: https://t.co/DoyIV0vBt7 2/3

Apr 2, 2025 · 36 likes · 2,294 followers View post →
Donatello Pietrapertosa.
@DonatelloPietr2 · X

https://t.co/vC4u02BgAU https://t.co/Ge9UKhX1bW

Mar 19, 2025 · 68 followers View post →
Jorge Bandeira
@jorge_lbansilva · X

@SauloPatrick10 @fernandok_reis @CortesAltoValor Caso tenha interesse em saber estudos sobre isso, deixo aqui: Bratsberg, B., & Rogeberg, O. (2018). Flynn effect and its reversal are both environmentally caused. *PNAS*, 115(26), 6674-6678.

Mar 18, 2025 · 34 followers View post →
Don Sanders
@Don_Sanders · X

@lukepuplett @patrickc @rjhaier Reverse Flynn effect is a concern: https://t.co/sFrLnns0eE

Mar 14, 2025 · 155 followers View post →
Richárd
@krichard121212 · X

@unboxpolitics @Conchobar2020 https://t.co/APMxD4vyHj

Mar 8, 2025 · 2 likes · 2,086 followers View post →
Will Davis
@WillDavis527115 · X

@MichaelKiwi77 @tracewoodgrains It ends at 2013 to avoid capturing the reversal of the Flynn effect.

Mar 3, 2025 · 189 followers View post →
Will Davis
@WillDavis527115 · X

@tracewoodgrains @MichaelKiwi77 The reversal is also interesting. https://t.co/hOozFmxMMB

Mar 3, 2025 · 189 followers View post →
Jacek Rafał Setliś
@JSetlis · X

@CDzwoni Badanie pt. "Flynn effect and its reversal are both environmentally caused", gdzie przeb. wyniki testów IQ norweskich mężczyzn w ramach służby wojskowej w latach 1970–2009, wykazało, że średni poziom IQ spadał o około 7 punktów na pokolenie wśród mężczyzn urodzonych po 1975.

Feb 21, 2025 · 1 like · 578 followers View post →
Fitomelatonina da Silva
@SANTfied · X

@Xavizko @Niffftyyy @lanz_remy @TheNickG18 @MizukiBadar https://t.co/MPKoklNhJL https://t.co/n8rfXHGPNl

Feb 16, 2025 · 84 followers View post →
orin jacobs
@orin_jacobs · X

@aliswisel @Paulie_dadof4 @EoinHiggins_ https://t.co/86Af21TM4I

Feb 7, 2025 · 329 followers View post →
Chris Popoff
@CSPopoff · X

@Alexandrovna805 Lol seriously it’s been observable for a while. ~ 7 pt decline per generation and it appears environmental https://t.co/MZs1oZYKoR

Jan 31, 2025 · 974 followers View post →
jcdurbant
@jcdurbant · X

https://t.co/VyWQVfe6rG

Dec 28, 2024 · 571 followers View post →
Invisible Gorilla
@InvisibleGoril1 · X

@Nymdok @jpmccarthyjr https://t.co/5FLTlq1yh1 https://t.co/jntwSLzq8x https://t.co/ZdD9LFqlMp

Dec 13, 2024 · 297 followers View post →
Salvador F
@salvadorfg.bsky.social · Bluesky

- Bratsberg, B., & Rogeberg, O. (2018, junio 6). Flynn effect and its reversal are both environmentally caused. Proceedings of the National Academy of Sciences, 115(26), 6674-6678. doi.org/10.1073/pnas...

Nov 19, 2024 View post →
NotATokenFemale
@NotATokenFemale · X

@coinvisionco @Ree_In_Oz @LucyTurnbull_AO You really are a low IQ person. Go and read the Reverse Flynn Effect. Here’s a link because I doubt you’ll be able to navigate Google. https://t.co/FDdFfK1cKh

Nov 2, 2024 · 1 like · 71 followers View post →
Ackermann
@Ackermann_cz · X

@MichalKaderka Nebo: https://t.co/h0dLVgHKHY

Sep 28, 2024 · 2 likes · 762 followers View post →
#1 MORBY CHANNEL FAN
@brainsthatrain · X

@GentiliMan40321 @worbeye @diorgoblin @DialecticBio "DUDE HETEROSIS" no. i've already covered it to death, but here's more: the hypothesis requires an effect between generations and families, but there was an effect within generations, families and even individuals (https://t.co/GAQPm9mXvU https://t.co/rfsggHZPaS)

Sep 26, 2024 · 1 followers View post →
#1 MORBY CHANNEL FAN
@brainsthatrain · X

@GentiliMan40321 @worbeye @diorgoblin @DialecticBio and we've seen a within-family flynn effect (https://t.co/e3vxz3kGme).

Sep 26, 2024 · 1 followers View post →
Pere Joan Sala
@Fradbius · X

Vés per on que no hi tornem. especialment pel que fa a la cognició. https://t.co/SOkALzCi2d

Sep 15, 2024 · 252 followers View post →
delena hate account
@workercommie · X

@GentiliMan40321 @shae_mcl Wrong https://t.co/PKFOwIYzAe

Sep 12, 2024 · 692 followers View post →
Gumby, Africa, Socialism
@GumbyPokeyRGA · X

@Amator_Culorum @izzybizzy44 @MrGlass61145253 @WallStreetSilv @elonmusk ‘It’s the environment, stupid!’

Sep 10, 2024 · 1 like · 370 followers View post →
Puddlemelt
@puddlemelt · X

@MrTradeoffs @serpent_rope @jeremykauffman https://t.co/80fBEOBihm

Sep 10, 2024 · 118 followers View post →
Mario Bisson
@mariobi2000 · X

@Tipuncho @lionel_case Après une longue recherche fastidieuse de 3 minutes ⬇️ https://t.co/Yw7GYkZ7bF

Sep 4, 2024 · 630 followers View post →
JM
@HJ_Mendoza07 · X

@lucar0458 @UrsulaKiener https://t.co/CDOQTByhBq

Sep 4, 2024 · 55 followers View post →
Puddlemelt
@puddlemelt · X

@okron8 @Luthier122 @MotherJones Genetic determination for IQ has been debunked: "the Flynn effect can be recovered from within-family variation in intelligence scores. This establishes that the large changes in average cohort intelligence reflect environmental factors" (https://t.co/eBcAA0Pn0r)

Sep 2, 2024 · 118 followers View post →
Puddlemelt
@puddlemelt · X

@EconAdept @WesleyZalk @MotherJones "This establishes that the large changes in average cohort intelligence reflect environmental factors and not changing composition of parents, which in turn rules out several prominent hypotheses for retrograde Flynn effects." (https://t.co/eBcAA0Pn0r)

Sep 2, 2024 · 118 followers View post →
hull_wifi447
@hullwifi44766 · X

@Lykten_no eugenics is desperately needed for most (if not all) Western nations, the US obviously included. https://t.co/wKizqDSfdz

Aug 27, 2024 · 597 followers View post →
Jacek Rafał Setliś
@JSetlis · X

@MikolajPisarski Sukces kapitalizmu jest wyraźnie skorelowany z odwróceniem się efektu Fynna, czyli głupieniem narodów, kapitalizm to maszyna dobrobytu, a ten szkodzi chamom, którym powinna burczeć w brzuchu, a naj. sukcesem winno być przeżycie do pierwszego. https://t.co/Hj2dAwsABj

Aug 26, 2024 · 578 followers View post →
Puddlemelt
@puddlemelt · X

@RealDianeYap @alibreland The Flynn effect, and its reversal illustrates that IQ is determined by environment, not genetics. (https://t.co/BwGlCn9J7H)

Aug 26, 2024 · 118 followers View post →
Puddlemelt
@puddlemelt · X

@eyeslasho @esjesjesj @alibreland The Flynn effect, and its reversal illustrates that IQ is determined by environment, not genetics. It's amazing that you post so much about race and IQ, yet don't understand this.(https://t.co/BwGlCn9J7H)

Aug 26, 2024 · 118 followers View post →
Faster Than Expected
@AI_imagineX · X

@bewell4711 @Race2Extinct Flynn effect and its reversal are both environmentally caused: https://t.co/IiSZiutqq3

Aug 25, 2024 · 1 like · 40 followers View post →
azusa
@rexkuu · X

@burn_n0ticer @Coinbullishish @jsnnsa @NuevoRoma01 @Gliamem445 @yacineMTB Lol wdym the reversal just means that the environmental factors that contributed previously to the rising iq scores plateaued/worsened, only conclusion there https://t.co/3N9QGPEhYV

Aug 22, 2024 · 1,043 followers View post →
Cedric Knight
@Cedders68 · X

@JulianCribb @ProfBillMcGuire Most coverage comes down to Bratsberg & Rogeberg (2018) https://t.co/2sKnKFvc31 I note this blog also suggests #ReverseFlynnEffect related to plastics: https://t.co/psWxMGFVNl I do worry about direct effect of increasing CO₂ on cognition.

Aug 22, 2024 · 1,245 followers View post →
Gyromite
@Gyromite34 · X

@momcilo1389 @joeldavisx IQs of Norwegian and Estonian men have fallen. Estonia isn't a magnet for immigrants. https://t.co/pEL0GoQJ3D

Jul 29, 2024 · 590 followers View post →
Gyromite
@Gyromite34 · X

@JuggerDojo945 @joeldavisx Women's mating choices are not eugenic. https://t.co/pEL0GoQJ3D

Jul 29, 2024 · 1 like · 590 followers View post →
orin jacobs
@orin_jacobs · X

@pondo_god @yesnicksearcy @MrJonCryer @imjdsharp 2018 https://t.co/86Af21TM4I

Jul 22, 2024 · 329 followers View post →
Daniel
@Ninja1992x92 · X

RT @Outdoctrination: "The analysis controls for all factors shared by siblings and finds no evidence for prominent causal hypotheses of the…

Jul 19, 2024 · 3 shares · 521 followers View post →
ronnocm
@ronnocm2 · X

RT @Outdoctrination: "The analysis controls for all factors shared by siblings and finds no evidence for prominent causal hypotheses of the…

Jul 15, 2024 · 3 shares · 1,559 followers View post →
Analyze & Optimize
@Outdoctrination · X

"The analysis controls for all factors shared by siblings and finds no evidence for prominent causal hypotheses of the decline implicating genes and environmental factors that vary between, but not within, families." https://t.co/xQRVHEwZtD

Jul 15, 2024 · 32 likes · 3 shares · 118,503 followers View post →
Alicja Kucharczyk
@StiepanTrofimo · X

@barritus_69 @WojtekKardys Tutaj niestety mamy do czynienia z nierzetelnością dziennikarską. Stosowanie wyolbrzymień żeby (prawdopodobnie) zwiększyć klikalność. Artukuł odwołuje się do tej publikacji: https://t.co/VAtcMBLYaY Ten artykuł RZETELNIE można streścić tak /1

Jul 8, 2024 · 508 followers View post →
Kevin Ness
@_MrTeatime_ · X

@Geognet @CasusLady @sandrousseau https://t.co/E7eJY0qzD4 Ça m'a pris 35 secondes

Jul 6, 2024 · 1 like · 187 followers View post →
Puddlemelt
@puddlemelt · X

@MemoryHoId @Z4ND1LE @patrick_basedmn @cyberS2angel @V1besqt @HistorySpartan @consciousphilos You don’t understand the Flynn effect and posted a picture of unsourced psuedoscience. This is what real science looks like: https://t.co/80fBEOBihm

Jul 3, 2024 · 1 like · 118 followers View post →
Palote
@Manuel677909601 · X

@Medicilio https://t.co/MfEzeYYMnF

Jun 27, 2024 · 119 followers View post →
blinikot
@bIinikot · X

@MomsPostingLs Fixed: Whitebois = IQ ~100, 14.12 cm (mean Europe). Black men = IQ 70-85, 14.88 cm (mean Africa). But we can all cheer up: While IQ is strongly declining, the PP size is constantly increasing worldwide ;3 (https://t.co/khOHlw3MV3, https://t.co/EwhVPE9eLN, https://t.co/1jx7VCWJLP)

Jun 22, 2024 · 68 followers View post →
Borger
@Borger_76 · X

@AGauteplass Den militærstudien som viser negativ flynn effekt. https://t.co/W8nkE7fI8z

May 15, 2024 · 222 followers View post →
Borger
@Borger_76 · X

@AGauteplass Legg till det faktum at Richard Nisbett har vært med å redigere artikkelen, og det hele blir faktisk litt sus. Han ble intervjuet i hjernevask, og han lyver rett ut angående effekten av gener ved andre anledninger. https://t.co/W8nkE7fI8z

May 15, 2024 · 222 followers View post →
Elkin Ramiro Serna D
@elkinrasedu · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 3, 2024 · 23 shares · 84 followers View post →
GeaHydra
@GeaHydra · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 3, 2024 · 23 shares · 1,149 followers View post →
Kyle
@LidiaPelaezCano · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 3, 2024 · 23 shares · 837 followers View post →
Clara Morrón
@AntojosdeClara · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 3, 2024 · 23 shares · 382 followers View post →
Juanma S.
@berniweah · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 462 followers View post →
Nubia Barrezueta El movimiento es vida!
@Nubiaaldelec · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 934 followers View post →
victorico
@victoricorubio · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 317 followers View post →
iluso
@saludentreno · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 26 followers View post →
jesus monleon
@jemonleon · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 13,223 followers View post →
Daniel
@danintriago_ · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 239 followers View post →
Snowy❄️
@BlackSnowy21 · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 173 followers View post →
alderaan77
@alderaan77 · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 114 followers View post →
Antonio Juárez
@tonojuarezjaj · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 76 followers View post →
Christian GuGa
@Gugueishon · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 24 followers View post →
Aquiles
@Sapiensbici · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 164 followers View post →
Anderson Salazar
@AnderSalazar · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 408 followers View post →
leonidas
@leonidacass · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 124 followers View post →
Daniel T. Vela
@danieltvela · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 299 followers View post →
Zyo
@zyo73 · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 91 followers View post →
Kory Guerrero
@koryguerrero7 · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 226 followers View post →
olitasdmar
@olitasdmar · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 4,799 followers View post →
Alberto Magno
@sel_magno · X

RT @FITrebelde: Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 23 shares · 401 followers View post →
Marcos-FitRebelde
@FITrebelde · X

Según varios estudios las nuevas generaciones son menos inteligentes... https://t.co/9qb6sIAa9j https://t.co/YgtiaSwvL4

May 2, 2024 · 124 likes · 23 shares · 98,737 followers View post →
German Contreras
@FlemingDriller · X

@EndWokeness https://t.co/KOatchQAZE Maybe....?

May 2, 2024 · 182 followers View post →
Jerónimo Donoso Villa
@JeroDonosoVilla · X

Tanto el #EfectoFlynn como su reversión son causados por el medio ambiente (doi:10.1073/pnas.1718793115). #CI, #RalphWiggum, #LosSimpson, #SistemaEducativo, #SaludPublica, #EducacionPublica, #SaludMental, #PoliticasDeSalud, #NoTodoVale, #LaOtraEscuela, #ORIGENLAB, #HUELVA. https://t.co/kvigeJEIxZ

Apr 29, 2024 · 64 followers View post →
Puddlemelt
@puddlemelt · X

@YGNatera @blazeringtrails @esjesjesj @eyeslasho You’re wrong. The Flynn effect has shown that IQ is 100% related to one’s environment: https://t.co/80fBEOBihm

Apr 22, 2024 · 118 followers View post →
Oliver (08 +)
@owllms_ · X

Flynn effect and its reversal are both environmentally caused. https://t.co/E0LWkcpLmS

Apr 4, 2024 · 51 followers View post →
Puddlemelt
@puddlemelt · X

@ZangZContent @whstancil IQ is determined by one’s environment, not genetics: “Flynn effect and its reversal are both environmentally caused” (https://t.co/80fBEOBihm)

Apr 1, 2024 · 118 followers View post →
.ۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗۗঔৣミAtheris༄
@AtherisRKT · X

@Er_fokin_beti Pobres depresivos haciendo cosas que no quieren hacer (no quieren hacer nada), si no aguantan lo tomaría como selección natural.Y lo de las generaciones hay muchísimos estudios en google sobre nativos digitales, pero si te da pereza buscar info aquí tienes https://t.co/uNByAxXMX6

Mar 24, 2024 · 516 followers View post →
小田周弥
@5huyA1117 · X

90年代までは10年ごとにIQが3ポイント増加していたが、2000年代以降大幅に知能が低下していたことが判明 https://t.co/U8uasrxnTQ

Mar 22, 2024 · 1 like · 16 followers View post →
Robert Vezirian
@RobertVezirian · X

@TylerFitch1 @benryanwriter @realchrisrufo Perhaps we read this differently but the Flynn effect to which you refer is detailed below for anyone interested… https://t.co/6wx4HBR1ce

Feb 12, 2024 · 227 followers View post →
Puddlemelt
@puddlemelt · X

@RealDianeYap The science shows it is 100% environmental. It’s only absurd if you don’t understand gene expression. “Flynn effect and its reversal are both environmentally caused” (https://t.co/80fBEOBihm)

Feb 9, 2024 · 118 followers View post →
Puddlemelt
@puddlemelt · X

@RealDianeYap Racial IQ gaps are a conspiracy theory not backed by any real science. IQ differences between humans are simply the result of differences in their environments: https://t.co/80fBEOBihm

Feb 9, 2024 · 118 followers View post →
Puddlemelt
@puddlemelt · X

@MrGlass61145253 @RealDianeYap The only good research shows that IQ is a function of one’s environment, and has nothing to do with genetics: https://t.co/80fBEOBihm

Feb 9, 2024 · 118 followers View post →
TJ, #FullMetaJacket
@coristus · X

@Scalibq @AnnetteScherp @eddy_terstall @esme_bosma Chaos nu in het westen, misschien hyperprocessed foods en ongezonde sedentaire levensstijl wat omlaag. https://t.co/YWnDuJUYki

Feb 8, 2024 · 1 like · 2,430 followers View post →
Gurwinder
@G_S_Bhogal · X

@litmus_2 @DKThomp The study in question was based on standardized IQ scores. https://t.co/j1tMMvWlMM https://t.co/MT7Maq5fkD

Dec 12, 2023 · 1 like · 148,233 followers View post →
Andrea Pepoli
@andreapepoli · X

RT @scafato: @pierpi13 I figli (alcuni) dei norvegesi (forse) Le conclusioni degli stessi ricercatori norvegesi sono ben più complesse (htt…

Nov 24, 2023 · 1 share · 17 followers View post →
Emanuele Scafato
@scafato · X

@pierpi13 I figli (alcuni) dei norvegesi (forse) Le conclusioni degli stessi ricercatori norvegesi sono ben più complesse (https://t.co/GM5epjMVZR ).Aiutiamoli i nostri giovani,sono molto più intelligenti di noi e tra i più intelligenti del mondo , nella top ten internazionale, verificato. https://t.co/VQkj9lb1hK

Nov 23, 2023 · 2 likes · 1 share · 868 followers View post →
delena hate account
@workercommie · X

Flynn effect and its reversal are both environmentally caused https://t.co/UsUL1wSAhP

Nov 21, 2023 · 5 likes · 1 share · 692 followers View post →
Ackermann
@Ackermann_cz · X

Průměrné IQ v Norsku je o 5 bodů nižší než u generace narozené roku 1975 - což byl možná vrchol v historii? https://t.co/SvvmeSNaMA

Nov 17, 2023 · 762 followers View post →
Gyromite
@Gyromite34 · X

@Attractiveincel People have been getting less intelligent for generations. Who cares if we gain a few inches in height? We'll be like the Dinka at this rate. https://t.co/2UdYRtmT8l

Nov 2, 2023 · 5 likes · 590 followers View post →
Lacy Johnston
@Lacyjohnston123 · X

Flynn effect and its reversal are both environmentally caused | PNAS https://t.co/xHtEn9loaz

Oct 30, 2023 · 1,595 followers View post →
Cuñado Docente
@DocenteCunado · X

@jordi_a @chungaanonima https://t.co/JmiGITGH4c

Oct 22, 2023 · 2,631 followers View post →
covidISaUSbioweapon
@PaulSansonetti · X

@Gegenbeispiel @Call_Me_Emo1 @PaulKle55412040 @Itssaffff14 @Behram_Makujina @Issaamro Flynn effect and its reversal are both environmentally caused https://t.co/Bam0NlYzGK

Oct 3, 2023 · 704 followers View post →
CRUX Psychology
@cruxpsychology · X

(Dworak et al., 2023) https://t.co/0YaTuAUDWy (Bratsberg & Rogeberg, 2018) https://t.co/uXHCTRBjfA [3/3]

Jul 27, 2023 · 403 followers View post →
???
@R7C9MXE9El86275 · X

Article: https://t.co/iqNuN5EEcj

Jun 30, 2023 View post →
לִי-אוֹן ביוסטר
@AslanYorgun5 · X

Flynn effect and its reversal are both environmentally caused | Proceedings of the National Academy of Sciences https://t.co/qTkTFP7UYC

May 16, 2023 · 376 followers View post →
David Bergman
@David_M_Bergman · X

En välsignelse med mönstring är möjligheten att genomföra registerstudier. Flynn-effekten är trenden att IQ ökat succesivt under 1900-talet, en effekt som har planat ut & är på väg att vända. "Flynn effect and its reversal are both environmentally caused" https://t.co/C2675lG8qS

Apr 30, 2023 · 12 likes · 20,816 followers View post →
Alessandro Devigus
@dentist_camera · X

@Pinochi0sNose @karpi https://t.co/1YPmNIyalM

Apr 22, 2023 · 379 followers View post →
Christopher Devers
@chrisdevers · X

Flynn effect and its reversal are both environmentally caused | Proceedings of the National Academy of Sciences https://t.co/88d2q0fa8T

Apr 11, 2023 · 1 like · 441 followers View post →
Steven Lubka ☀️
@DzambhalaHODL · X

@ESYudkowsky And here is some stuff from a different angle 7 IQ loss per generation within the same Norwegian families https://t.co/9T5nA2ZNmy

Mar 27, 2023 · 3 likes · 34,733 followers View post →
Steven Lubka ☀️
@DzambhalaHODL · X

@FullyOrange @Bitcoin_Keith https://t.co/9T5nA2ZNmy @Bitcoin_Keith

Mar 26, 2023 · 3 likes · 34,733 followers View post →
Paberfaber
@paberfaber · X

@micheleboldrin La tesi discende in gran parte dallo studio condotto da Bernt Bratsberg e Ole Rogeberg del Centro Ragnar Frisch per la ricerca economica in Norvegia i cui risultati hanno generato un dibattito più che un esito condiviso e palese. https://t.co/kophb0bfbj

Mar 26, 2023 · 2 likes · 305 followers View post →
Jack V Lloyd
@jackvlloyd · X

@G_Freeman89 @ZubyMusic For more on this, read: Flynn effect and its reversal are both environmentally caused https://t.co/dcVr4j3gqi

Mar 9, 2023 · 10,747 followers View post →
V
@fawkesmk · X

@Ifrit357 @oobs_gov @4lm4c3 @stone_toss https://t.co/69Ecy1hiSr

Feb 24, 2023 · 84 followers View post →
Pedro M. Costa
@PedroMCosta78 · X

@Davek2611 The original paper... https://t.co/Fn8LRwF8Mf

Oct 7, 2022 · 1 like · 253 followers View post →
Herman
@observeherm · X

@SakakiIsCute The Flynn effect did stop (in the west). https://t.co/Czqh7AXBTK

Jul 31, 2022 · 69 followers View post →
Jordan James Etem
@JordanJamesEtem · X

Bratsberg, B., Rogeberg, O.: Flynn effect and its reversal are both environmentally caused. PNAS 115(26), 6674–6678 (June 26, 2018) @oraclepartners @larryellison #ArtificialIntelligence https://t.co/80tliYUvdv

Jul 8, 2022 · 12,645 followers View post →
Perfect Polygon
@Xx_P3RF3CT_xX · X

@foul_succubus @AaronTide @JTkeepsrockin @iamyesyouareno Flynn effect already stopped, in fact it is going backwards https://t.co/fT8jFUAgWV https://t.co/o4uyUej47X https://t.co/ZaRixi76TR

Jul 3, 2022 · 1 like · 616 followers View post →
Floyd Reinhardt ⚕️
@hemorrfloyd · X

Modern society's accommodations have made very high intelligence unnecessary, so it's disappearing. Decline observed here: https://t.co/qQRj2ZZDwI

Jun 21, 2022 · 222 followers View post →
cabezadevaca
@cabezadevaca · X

@Rafagutierrezcc @HolaNyarla @MalditaAlpaca @MaAleja2208 @Xion_Sempai Y aquí en APA el texto fuente Bratsberg, B., & Rogeberg, O. (2018). Flynn effect and its reversal are both environmentally caused. Proceedings Of The National Academy Of Sciences, 115(26), 6674-6678. doi: 10.1073/pnas.1718793115

May 23, 2022 · 680 followers View post →
αναΜορφωση
@anamorfosis · X

@karampatzos @KKalliris Συμφωνουμε. Θα σημειωσω παντως την υποκρισια χορτοφαγων γονεων, που μεγαλωσαν & αναπτυχθηκαν με τα προτερηματα της κρεοφαγιας, αλλα το στερουν απο τα παιδια τους. Και καπως ετσι πεφτει το IQ των κοινωνιων μας :) https://t.co/w69ZO1WNzj ΣΓ

Mar 10, 2022 · 2,210 followers View post →
Eagle Community Care
@EagleCommCare · X

One now has to wonder what the cause(s) of observed IQ decline since 1975 may be. Bratsberg, B., Rogeberg, O., 2018. Flynn effect and its reversal are both environmentally caused. PNAS 201718793. https://t.co/SbW2sWO0B6 https://t.co/16E2t7qoQk

Mar 7, 2022 · 88 followers View post →
Robert 'Cranky' samwell
@Resist_dwp · X

@__JimMorrison__ @GeneralTwattery @simon4124 @AlMaximoff @Mongrelbite @AlphaGoII1 @LisaTrainer15 @Cockwomblethro1 @BoardAnglo @Hobbehod1 @altchiefgoyberg @thedoginalog @GaryOfLancs @SvenJager1997 @WhiteStag15 @ChampionOfTrut2 @Hannster6 @PlaytheYtMan @BegsAli42 @AtRowena @RitchieBlaine1 @GrapesDoSmirk @EirikIvanov @goy_another @Zundelist4 @dave_brandrick @BritonNative @ProfuselyB rubbish you utter clown 'Flynn effect and its reversal are both environmentally caused' https://t.co/sAqSoOZcbp

Feb 17, 2022 · 1,427 followers View post →
Robert 'Cranky' samwell
@Resist_dwp · X

@__JimMorrison__ @GeneralTwattery @simon4124 @AlMaximoff @Mongrelbite @AlphaGoII1 @LisaTrainer15 @Cockwomblethro1 @BoardAnglo @Hobbehod1 @altchiefgoyberg @thedoginalog @GaryOfLancs @SvenJager1997 @WhiteStag15 @ChampionOfTrut2 @Hannster6 @PlaytheYtMan @BegsAli42 @AtRowena @RitchieBlaine1 @GrapesDoSmirk @EirikIvanov @goy_another @Zundelist4 @dave_brandrick @BritonNative @ProfuselyB 'Flynn effect and its reversal are both environmentally caused' herr, derr, the flynn effect is absolutely based on environmental factors nothing you have said debunks it clown https://t.co/sAqSoPgNzZ

Feb 17, 2022 · 1 like · 1,427 followers View post →
Coucke
@Coucke5 · X

Flynn effect and its reversal are both environmentally caused https://t.co/V3156sXnN1

Nov 23, 2021 · 137 followers View post →
James Igoe
@JamesJosephIgoe · X

Flynn effect and its reversal are both environmentally caused https://t.co/s2xhSH9r2C via @instapaper

Aug 25, 2021 · 410 followers View post →
Agnes⁷⸙͎۪۫
@koosettee · X

Bratsberg, B., & Rogeberg, O. (2018). El efecto Flynn y su reversión son ambos causados por el medio ambiente. Proceedings of the National Academy of Sciences of the United States of America,115(26), 6674–6678. https://t.co/O8ZbMNqFPM

Jun 23, 2021 · 4 likes · 5 followers View post →
Stephen Pimentel
@StephenPiment · X

Flynn effect and its reversal are both environmentally caused https://t.co/blJQoEftcM

May 7, 2021 · 12,708 followers View post →
ゴミチ
@gomichipp · X

Flynn effect and its reversal are both environmentally caused | PNAS これかな https://t.co/b8tRbZ8V7e

Apr 16, 2021 · 1,429 followers View post →
Edu Adragna
@7seasreporter · X

Flynn effect and its reversal are both environmentally caused https://t.co/H25oPlPibB Just in case: Cease to teach to the test!

Jan 10, 2021 · 208 followers View post →
Andreas Hämäläinen
@Hamalisk · X

@MaxDahl2 "Flynn effect and its reversal are both environmentally caused | PNAS" https://t.co/Cu4atg6h8E

Dec 24, 2020 · 2 likes · 1,697 followers View post →
Le Néandertal en costard
@HydrePrever · X

Confirmation bias at its best: this person cited the pnas paper "Flynn effect and its reversal are both environmentally caused" as a an argument for dysgenism. She probably stopped to read at "reversal" https://t.co/6RGQBKoFFK

Jul 28, 2020 · 6 likes · 3,204 followers View post →
....
@yi6WW2IquqwQPkr · X

Flynn Effect and its reversal are both environmentally caused https://t.co/F4WNlig9Tz

Jun 25, 2020 · 1 like · 1 share · 6 followers View post →
ノリオ
@norioNY · X

Flynn effect and its reversal are both environmentally caused https://t.co/WnWewRiJ43

Apr 27, 2020 · 563 followers View post →
Barbara Collevecchio
@colvieux · X

Stiamo diventando tutti più stupidi per colpa della velocizzazione e perdita capacità del pensiero lento? Flynn effect and its reversal are both environmentally caused https://t.co/AR3O7wegzQ

Apr 20, 2020 · 7 likes · 42,897 followers View post →
❄病気は頑張りの「 #結晶
@nemunokies · X

RT @serotonin_nin: Flynn effect and its reversal are both environmentally caused https://t.co/xWACwpdPig The negative Flynn Effect: A sys…

Jan 27, 2020 · 1 share · 2,966 followers View post →
serotonin_nin
@serotonin_nin · X

Flynn effect and its reversal are both environmentally caused https://t.co/xWACwpdPig The negative Flynn Effect: A systematic literature review https://t.co/hQZBBZ8ddD!

Jan 27, 2020 · 2 likes · 1 share · 2,378 followers View post →
Nina Pinjola
@NinaPinjola · X

Flynn effect and its reversal are both environmentally caused https://t.co/ZXa4BZK2TE

Jan 3, 2020 · 30 followers View post →
Julia B.
@JuliaB_fitness · X

RT @JuliaB_fitness: @Mangan150 #RetrogradeEvolution (J Monod basically warned about it in Chance & Necessity (1970). See this also: Flynn…

Dec 22, 2019 · 1 share · 2,265 followers View post →
Julia B.
@JuliaB_fitness · X

@Mangan150 #RetrogradeEvolution (J Monod basically warned about it in Chance & Necessity (1970). See this also: Flynn effect and its reversal are both environmentally caused. https://t.co/A9CzLuLtqj (Not sure how science-based IQ tests or this paper really is but interesting in any case) https://t.co/RXP2AOJN4y

Dec 22, 2019 · 3 likes · 1 share · 2,265 followers View post →
PsycheRadio
@marxindo · X

RT @kaihiraishi: これか。未チェックだった。_φ(・_・ Flynn effect and its reversal are both environmentally caused https://t.co/sMSkiPbVXb

Jul 11, 2019 · 1 share · 47,329 followers View post →
Hiraishi Kai
@kaihiraishi · X

これか。未チェックだった。_φ(・_・ Flynn effect and its reversal are both environmentally caused https://t.co/sMSkiPbVXb

Jul 11, 2019 · 6 likes · 1 share · 3,024 followers View post →
edmundogs
@edmundogs · X

Flynn effect and its reversal are both environmentally caused https://t.co/UjfSRYsaGs

Jun 15, 2019 · 1 like · 7,738 followers View post →
Rodrigo Soto Moreno
@rodsotomoreno · X

Flynn effect and its reversal are both environmentally caused https://t.co/BXbmQeB5Nu

May 27, 2019 · 1,111 followers View post →
Hidenobu KUBO 久保英信
@tucan · X

RT @oshio_at: Flynn effect and its reversal are both environmentally caused https://t.co/zt1f7FzqPy

May 23, 2019 · 2 shares · 1,190 followers View post →
Atsushi Oshio / 小塩真司
@oshio_at · X

Flynn effect and its reversal are both environmentally caused https://t.co/zt1f7FzqPy

May 23, 2019 · 2 likes · 2 shares · 8,699 followers View post →
Kazuakat
@kazuakat · X

人のIQは低下している。 Flynn effect and its reversal are both environmentally caused | PNAS https://t.co/glW6KvppB1

Apr 12, 2019 · 169 followers View post →
ghionu
@ghionu · X

Flynn effect and its reversal are both environmentally caused https://t.co/SB9aoq53cE

Mar 13, 2019 · 317 followers View post →
Hachotakni Y'Barbo
@Hachotakni · X

This establishes that the large changes in average cohort intelligence reflect environmental factors and not changing composition of parents, which in turn rules out several prominent hypotheses for retrograde Flynn effects.” https://t.co/VS86fhyYyP

Feb 5, 2019 · 513 followers View post →
mamewhit
@mamewhit · X

Flynn effect and its reversal are both environmentally caused https://t.co/F7aEbqcTX2

Jan 10, 2019 · 1,241 followers View post →