Opposite‐Sex Twins and Adolescent Same‐Sex Attraction1

@article{Bearman2002OppositeSexTA,
  title={Opposite‐Sex Twins and Adolescent Same‐Sex Attraction1},
  author={Peter Shawn Bearman and Hannah Br{\"u}ckner},
  journal={American Journal of Sociology},
  year={2002},
  volume={107},
  pages={1179 - 1205}
}
The etiology of human same‐sex romantic attraction is generally framed in terms of (1) social influences, (2) genetic influences, or (3) hormonal influences. In this article, we show that adolescent males who are opposite‐sex twins are twice as likely as expected to report same‐sex attraction; and that the pattern of concordance (similarity across pairs) of same‐sex preference for sibling pairs does not suggest genetic influence independent of social context. Our data falsify the hormone… 
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