| Literature DB >> 22711965 |
Nancy L Segal1, Shirley A McGuire, Joanne Hoven Stohs.
Abstract
The Fullerton Virtual Twin Study has been assessing the behaviors of an unusual sibship since 1982. Virtual twins (VTs) are same-age, unrelated siblings reared together since infancy. They replicate the rearing situation of twins but without the genetic link, enabling direct assessment of shared environmental effects on behavior. An updated analysis of IQ data, based on an increased sample of 142 VT pairs (7.87 years, SD=8.22), is presented. Intraclass correlations of .28 (IQ) and .11 (subtest profile) indicated modest shared environmental influences on intelligence. Findings from the Twins, Adoptees, Peers and Siblings (TAPS) project that studies virtual twins and other kinships are described.Entities:
Year: 2012 PMID: 22711965 PMCID: PMC3375824 DOI: 10.1016/j.paid.2011.11.019
Source DB: PubMed Journal: Pers Individ Dif ISSN: 0191-8869