IDEAS home Printed from https://ideas.repec.org/a/eee/intell/v66y2018icp112-121.html
   My bibliography  Save this article

IQ decline and Piaget: Does the rot start at the top?

Author

Listed:
  • Flynn, James R.
  • Shayer, Michael

Abstract

The IQ gains of the 20th century have faltered. Losses in Nordic nations after 1995 average at 6.85 IQ points when projected over thirty years. On Piagetian tests, Britain shows decimation among high scorers on three tests and overall losses on one. The US sustained its historic gain (0.3 points per year) through 2014. The Netherlands shows no change in preschoolers, mild losses at high school, and possible gains by adults. Australia and France offer weak evidence of losses at school and by adults respectively. German speakers show verbal gains and spatial losses among adults. South Korea, a latecomer to industrialization, is gaining at twice the historic US rate.

Suggested Citation

  • Flynn, James R. & Shayer, Michael, 2018. "IQ decline and Piaget: Does the rot start at the top?," Intelligence, Elsevier, vol. 66(C), pages 112-121.
    • Handle: RePEc:eee:intell:v:66:y:2018:i:c:p:112-121
    DOI: 10.1016/j.intell.2017.11.010
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0160289617302787
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.intell.2017.11.010?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Jakob Pietschnig & Martin Voracek & Anton K Formann, 2010. "Pervasiveness of the IQ Rise: A Cross-Temporal Meta-Analysis," PLOS ONE, Public Library of Science, vol. 5(12), pages 1-6, December.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Gunnesch-Luca, George & Iliescu, Dragoș, 2020. "Time and generational changes in cognitive performance in Romania," Intelligence, Elsevier, vol. 79(C).
    2. Demetriou, Andreas & Golino, Hudson & Spanoudis, George & Makris, Nikolaos & Greiff, Samuel, 2021. "The future of intelligence: The central meaning-making unit of intelligence in the mind, the brain, and artificial intelligence," Intelligence, Elsevier, vol. 87(C).
    3. Daniele Angelini, 2023. "Aging Population and Technology Adoption," Working Paper Series of the Department of Economics, University of Konstanz 2023-01, Department of Economics, University of Konstanz.
    4. Must, Olev & Must, Aasa, 2020. "No decline in the principle-based thought of 9-year-old schoolchildren between 1991 and 2001," Intelligence, Elsevier, vol. 80(C).
    5. Hegelund, Emilie R. & Okholm, Gunhild T. & Teasdale, Thomas W., 2021. "The secular trend of intelligence test scores in the present century: The Danish experience," Intelligence, Elsevier, vol. 85(C).
    6. Must, Olev & Must, Aasa, 2018. "Speed and the Flynn Effect," Intelligence, Elsevier, vol. 68(C), pages 37-47.
    7. Carvalho, Irene P. & Costa, Ana & Silva, Sofia & Moreira, Bárbara & Almeida, Agostinho & Moreira-Rosário, André & Guerra, António & Peixoto, Bruno & Delerue-Matos, Cristina & Sintra, Diana & Pestana, , 2020. "Children’s performance on Raven’s Coloured progressive matrices in Portugal: The Flynn effect," Intelligence, Elsevier, vol. 82(C).
    8. Egeland, Jonathan, 2022. "The ups and downs of intelligence: The co-occurrence model and its associated research program," Intelligence, Elsevier, vol. 92(C).
    9. Colom, Roberto & García, Luis F. & Shih, Pei Chun & Abad, Francisco J., 2023. "Generational intelligence tests score changes in Spain: Are we asking the right question?," Intelligence, Elsevier, vol. 99(C).
    10. Meisenberg, Gerhard & Lynn, Richard, 2023. "Ongoing trends of human intelligence," Intelligence, Elsevier, vol. 96(C).
    11. Dutton, Edward & Bakhiet, Salaheldin Farah Attallah & Osman, Habab Abdlahiy & Becker, David & Essa, Yossry Ahmed Sayed & Blahmar, Tahani Abdulrahman Muhammad & Lynn, Richard & Hakami, Sultan Mohammed, 2018. "A Flynn Effect in Khartoum, the Sudanese capital, 2004–2016," Intelligence, Elsevier, vol. 68(C), pages 82-86.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Pietschnig, Jakob & Deimann, Pia & Hirschmann, Nicole & Kastner-Koller, Ursula, 2021. "The Flynn effect in Germanophone preschoolers (1996–2018): Small effects, erratic directions, and questionable interpretations," Intelligence, Elsevier, vol. 86(C).
    2. Wongupparaj, Peera & Wongupparaj, Rangsirat & Morris, Robin G. & Kumari, Veena, 2023. "Seventy years, 1000 samples, and 300,000 SPM scores: A new meta-analysis of Flynn effect patterns," Intelligence, Elsevier, vol. 98(C).
    3. Wongupparaj, Peera & Wongupparaj, Rangsirat & Kumari, Veena & Morris, Robin G., 2017. "The Flynn effect for verbal and visuospatial short-term and working memory: A cross-temporal meta-analysis," Intelligence, Elsevier, vol. 64(C), pages 71-80.
    4. Gunnesch-Luca, George & Iliescu, Dragoș, 2020. "Time and generational changes in cognitive performance in Romania," Intelligence, Elsevier, vol. 79(C).
    5. Lazaridis, Alexandros & Vetter, Marco & Pietschnig, Jakob, 2022. "Domain-specificity of Flynn effects in the CHC-model: Stratum II test score changes in Germanophone samples (1996–2018)," Intelligence, Elsevier, vol. 95(C).
    6. Overton, Marieclaire & Pihlsgård, Mats & Elmståhl, Sölve, 2018. "Up to speed: Birth cohort effects observed for speed of processing in older adults: Data from the Good Ageing in Skåne population study," Intelligence, Elsevier, vol. 67(C), pages 33-43.
    7. Rodgers, Joseph Lee & O'Keefe, Patrick, 2023. "A synthetic theory to integrate and explain the causes of the Flynn effect: The Parental Executive Model," Intelligence, Elsevier, vol. 98(C).

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:intell:v:66:y:2018:i:c:p:112-121. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: https://www.journals.elsevier.com/intelligence .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.