Shared genes, shared experiences, and similarity of personality: data from 14,288 adult Finnish co-twins.

@article{Rose1988SharedGS,
  title={Shared genes, shared experiences, and similarity of personality: data from 14,288 adult Finnish co-twins.},
  author={Richard J. Rose and Markku Koskenvuo and Jaakko M Kaprio and Seppo S Sarna and H Langinvainio},
  journal={Journal of personality and social psychology},
  year={1988},
  volume={54 1},
  pages={161-71}
}
Similarities for Extraversion (E) and Neuroticism (N) scale scores from the Eysenck Personality Inventory were evaluated in 7,144 adult twin pairs, drawn from the population-based Finnish Twin Cohort, as a function of the co-twins' genetic resemblance, gender, age, and the frequency of their social interaction with each other. To separate effects of shared genes from those of shared experience, we performed hierarchical multiple regressions of double-entry data matrices. Results establish the… CONTINUE READING

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