Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities

Over a century of research on between-person differences has resulted in the consensus that human cognitive abilities are hierarchically organized, with a general factor, termed general intelligence or “g,” uppermost. Surprisingly, it is unknown whether this body of evidence is informative about how...

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Main Authors: Florian Schmiedek, Martin Lövdén, Timo von Oertzen, Ulman Lindenberger
Format: Article
Language:English
Published: PeerJ Inc. 2020-06-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/9290.pdf
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author Florian Schmiedek
Martin Lövdén
Timo von Oertzen
Ulman Lindenberger
author_facet Florian Schmiedek
Martin Lövdén
Timo von Oertzen
Ulman Lindenberger
author_sort Florian Schmiedek
collection DOAJ
description Over a century of research on between-person differences has resulted in the consensus that human cognitive abilities are hierarchically organized, with a general factor, termed general intelligence or “g,” uppermost. Surprisingly, it is unknown whether this body of evidence is informative about how cognition is structured within individuals. Using data from 101 young adults performing nine cognitive tasks on 100 occasions distributed over six months, we find that the structures of individuals’ cognitive abilities vary among each other, and deviate greatly from the modal between-person structure. Working memory contributes the largest share of common variance to both between- and within-person structures, but the g factor is much less prominent within than between persons. We conclude that between-person structures of cognitive abilities cannot serve as a surrogate for within-person structures. To reveal the development and organization of human intelligence, individuals need to be studied over time.
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spelling doaj.art-60b4c3244985483683e807d2cdc896b92023-12-03T10:54:50ZengPeerJ Inc.PeerJ2167-83592020-06-018e929010.7717/peerj.9290Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilitiesFlorian Schmiedek0Martin Lövdén1Timo von Oertzen2Ulman Lindenberger3Center for Lifespan Development, Max Planck Institute for Human Development, Berlin, GermanyCenter for Lifespan Development, Max Planck Institute for Human Development, Berlin, GermanyCenter for Lifespan Development, Max Planck Institute for Human Development, Berlin, GermanyCenter for Lifespan Development, Max Planck Institute for Human Development, Berlin, GermanyOver a century of research on between-person differences has resulted in the consensus that human cognitive abilities are hierarchically organized, with a general factor, termed general intelligence or “g,” uppermost. Surprisingly, it is unknown whether this body of evidence is informative about how cognition is structured within individuals. Using data from 101 young adults performing nine cognitive tasks on 100 occasions distributed over six months, we find that the structures of individuals’ cognitive abilities vary among each other, and deviate greatly from the modal between-person structure. Working memory contributes the largest share of common variance to both between- and within-person structures, but the g factor is much less prominent within than between persons. We conclude that between-person structures of cognitive abilities cannot serve as a surrogate for within-person structures. To reveal the development and organization of human intelligence, individuals need to be studied over time.https://peerj.com/articles/9290.pdfStructure of cognitive abilitiesIntelligenceIntraindividual variabilityIndividual differencesErgodicityWithin-person structure
spellingShingle Florian Schmiedek
Martin Lövdén
Timo von Oertzen
Ulman Lindenberger
Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
PeerJ
Structure of cognitive abilities
Intelligence
Intraindividual variability
Individual differences
Ergodicity
Within-person structure
title Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
title_full Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
title_fullStr Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
title_full_unstemmed Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
title_short Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
title_sort within person structures of daily cognitive performance differ from between person structures of cognitive abilities
topic Structure of cognitive abilities
Intelligence
Intraindividual variability
Individual differences
Ergodicity
Within-person structure
url https://peerj.com/articles/9290.pdf
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