Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-25T02:39:42.138Z Has data issue: false hasContentIssue false
  • English
  • Français

Finnish Twins Reared Apart III: Personality Factors

Published online by Cambridge University Press:  01 August 2014

H. Langinvainio ,
J. Kaprio ,
M. Koskenvuo  and
J. Lönnqvist
H. Langinvainio*
Affiliation:
Department of Public Health Science, University of Helsinki
J. Kaprio
Affiliation:
Department of Public Health Science, University of Helsinki
M. Koskenvuo
Affiliation:
Department of Public Health Science, University of Helsinki
J. Lönnqvist
Affiliation:
Department of Psychiatry, University of Helsinki
*
Department of Public Health Science, University of Helsinki, Haartmaninkatu 3, 00290 Helsinki 29, Finland

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

This study is based on data from 165 adult twin pairs separated at 10 years or less. Information on personality factors: extraversion (E) and neuroticism (N) (EPI scale short from), life satisfaction (LS) (Allardt) and stress of daily activities (SDA) was obtained as part of the questionnaire study carried out in the entire Finnish Twin Cohort in 1975. Later in 1979 a questionnaire sent to the twins reared apart yielded a scale (range 7-30 points) measuring the environmental dissimilarities after separation (reliability 0.83). The effect of separation on personality factors by analysis of variance of individual data was studied. Sex, zygosity and age-at-separation were included in the models. The overall expalanatory rates were low (2.1-4.4%). The definitive study group was formed by selecting those pairs with a dissimilarity score greater than 15. The following intraclass correlations were obtained:

Keywords

Twins reared apartRearing environmentAdoptionBehavioral geneticsPersonality
Type
Twins Reared Apart
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 33 , Issue 2 , April 1984 , pp. 259 - 264
Copyright
Copyright © The International Society for Twin Studies 1984

References

REFERENCES

1.Allardt, E (1973): About dimensions of welfare; an explanatory analysis of the comparative Scandinavian survey. University of Helsinki, Research group of comparative sociology. Research Reports 1.Google Scholar
2.Eysenck, HJ (1970): The Structure of Human Personality (3rd ed.). London: Methuen.Google Scholar
3.Floderus, B (1974): Psycho-social factors in relation to coronary hearth disease and associated risk factors. Nord Hyg Tidskr suppl 6.Google Scholar
4.Jinks, JL, Fulker, DW (1970): Comparison of the biometrical genetical, MAVA, and classical approaches to the analysis of human behaviour. Psychol Bull 73:311–349.CrossRefGoogle Scholar
5.Koskenvuo, M, Langinvainio, H, Kaprio, J, Rantasalo, I, Sarna, S (1979): The Finnish Twin Registry: Baseline characteristics, Section III: Occupational and psychosocial factors. Publications of the Department of Public Health Science M49, Helsinki.Google Scholar
6.Langinvainio, H, Koskenvuo, M, Kaprio, J, Lönnqvist, J, Tarkkonen, L (1981): Finnish twins reared apart: Preliminary characterization of rearing environment. Twin Research 3: Part C. Epidemiological and Clinical Studies. New York: Alan R. Liss, p 189–198.Google Scholar
7. Langinvainio, H, Koskenvuo, M, Kaprio, J, Sistonen, P (1984): Finnish twins reared apart II: Validation of zygosity, environmental dissimilarity and weight and height. Acta Genet Med Gemellol 33:251–258.Google ScholarPubMed
8.Newman, HH, Freeman, FN, Holzinger, KJ (1937): Twins: A Study of Heredity and Environment. Chicago: Chicago University Press.Google Scholar
9.Shields, J (1962): Monozygotic Twins Brought Up Apart and Brought Up Together. London: Oxford University Press.Google Scholar
10.Tarkkonen, L, Koskenvuo, M, Kaprio, J, Langinvainio, H, Floderus-Myrhed, B (1981): Crossvalidation of the Eysenck Extroversion and Neuroticism Scales in Finland and Sweden. Publications of the Department of Public Health Science M36, University of Helsinki.Google Scholar