Citation
Guo, Guang (2006). Genetic Similarity Shared by Best Friends among Adolescents.
Twin Research and Human Genetics, 9(1), 113-121.
Abstract
Two observations suggest a genetic similarity among close friends: (1) the observed similarity among friends in certain traits and behaviors; (2) the evidence that many of these traits and behaviors have a genetic component. This hypothesis is tested using monozygotic (MZ) twins, dizygotic (DZ) twins, full biological siblings, and their best friends from the National Longitudinal Study of Adolescent Health (Add Health). Whether the resemblance between MZ twins' friends is larger than that between friends of DZ twins and full siblings is investigated with respect to 4 individual traits or behaviors: grade point average (GPA), AHPVT (the version Peabody Picture Vocabulary Test [PPVT] designed for Add Health), aggressive behavior, and depression. Our hypothesis is supported in analyses among same-sex friends (not among different-sex friends) for GPA, aggressive behavior, and AHPVT.
URL
http://dx.doi.org/10.1375/183242706776402920Reference Type
Journal Article
Year Published
2006
Journal Title
Twin Research and Human Genetics
Author(s)
Guo, Guang
ORCiD
Guo - 0000-0002-4465-9881
