Behavior Genetics

, Volume 20, Issue 6, pp 763–778

Social contact and sibling similarity: Facts, issues, and red herrings

  • Richard J. Rose
  • Jaakko Kaprio
  • Christopher J. Williams
  • Richard Viken
  • Karen Obremski
Article

DOI: 10.1007/BF01065919

Cite this article as:
Rose, R.J., Kaprio, J., Williams, C.J. et al. Behav Genet (1990) 20: 763. doi:10.1007/BF01065919

Abstract

We consider evidence that shared experience is associated with sibling resemblance and report new analyses of our earlier data to assess the magnitude and meaning of that association. We cite recent Swedish studies of early separated twins and present new data from reared-apart twins in Finland. Results of these analyses confirm our earlier conclusion that, for some dimensions of personality and life-style, twins who cohabit longer into adulthood and twins who retain closer contact after separation are more alike. Further, new analyses here reported are consistent with our earlier inference that, for neuroticism and consumption of alcohol, cotwin differences in contact precede, and causally contribute to, differences in behavioral similarity.

Key Words

shared environment sibling similarity alcohol use personality 

Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • Richard J. Rose
    • 1
    • 2
  • Jaakko Kaprio
    • 3
  • Christopher J. Williams
    • 2
  • Richard Viken
    • 1
  • Karen Obremski
    • 1
  1. 1.Department of PsychologyIndiana UniversityBloomington
  2. 2.Department of Medical GeneticsIndiana University School of MedicineIndianapolis
  3. 3.Department of Public HealthUniversity of HelsinkiHelsinkiFinland

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