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Virtual twins are two children who are generally the same age and who are not genetic siblings, yet they are "reared together since infancy".[1] Others have defined virtual twins as "unrelated children born within nine months of each other who enter a family, through birth or adoption, in the first year of life.[2]

This phenomenon has led to the creation of the Fullerton Virtual Twin Study (FVTS) at California State University, Fullerton (CSUF).[3]

References

  1. ^ Segal, N. L.; McGuire, S. A.; Stohs, J. H. (2012). "What Virtual Twins Reveal About General Intelligence and Other Behaviors". Personality and Individual Differences. 53 (4): 405–410. doi:10.1016/j.paid.2011.11.019. PMC 3375824. PMID 22711965.
  2. ^ "In Studies of Virtual Twins, Nature Wins Again". New York Times. 4 September 2008. Retrieved 25 November 2022.
  3. ^ Segal, Nancy L.; Niculae, Francisca J. (2019). "Fullerton Virtual Twin Project: Overview and 2019 Update". Twin Research and Human Genetics. 22 (6): 731–734. doi:10.1017/thg.2019.40. PMID 31354120. S2CID 198966930.


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