Cited by 295Cognitive Abilities and TestingAssisted Reproductive Technology and Twin PregnancyPersonality Traits and Psychology

Growing up and growing apart: a developmental meta-analysis of twin studies.

McCartney, Kathleen, Harris, Monica J., Bernieri, Frank·1990·Psychological Bulletin

Abstract

Developmental change in twin similarity was examined with age contrasts in a meta-analysis of twin studies from 1967 through 1985. Intraclass rs were coded from 103 papers that included data for monozygotic or dizygotic twins, or for both, on personality or intelligence variables. Analyses indicated that there was a general tendency for some intraclass rs to decrease with age. In other words, as twins grow up, they grow apart. There were also developmental differences associated with components of variance for heritability, the shared environment, and the nonshared environment. Mechanisms through which the nonshared environment may operate are discussed.

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Crossref · 10.1037/0033-2909.107.2.226

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  • Intro-/extraversion is a highly genetically determined trait with a clear biological basis.

    “As argued above, intro-/extraversion is a highly genetically determined trait with a clear biological basis (Eysenck, 1967; McCartney et al., 1990; Loehlin, 1992)”

    From The Relationship between Grandiose and Vulnerable (Hypersensitive) Narcissism (2017) · cites this paper as McCartney et al., 1990

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Authors
McCartney, K., Harris, M. J., & Bernieri, F.
Affiliations
University of New Hampshire (US)
Venue
Psychological Bulletin
Published
1990
Volume
107
Issue
2
Pages
226-237
ISSN
  • 0033-2909 (ISSN-L)
  • 1939-1455
OpenAlex
W2018912281
Cited by
295
References
141
Citations by year
2026: 1 · 2025: 5 · 2024: 6 · 2023: 5 · 2022: 4 · 2021: 5 · 2020: 6 · 2019: 4 · 2018: 2 · 2017: 8 · 2016: 5 · 2015: 9 · 2014: 6 · 2013: 13 · 2012: 7
FWCI
1.65
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Bulletin (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (7r01mh041807-02)
  • National Institute of Mental Health (MH41807)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Assisted Reproductive Technology and Twin Pregnancy
  • Social Sciences › Psychology › Clinical Psychology › Personality Traits and Psychology
Keywords
twin similarity, developmental changes, monozygotic twins, dizygotic twins, heritability, shared environment, nonshared environment, personality, intelligence, intraclass correlation coefficient, age differences
MeSH terms
Adolescent, Adult, Child, Humans, Individuation, Personality Development, Social Environment, Twins, Meta-Analysis as Topic

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