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Article: Recent research on sexual orientation and fraternal birth order.(a review of the research; includes references)
- Article from:
- The Canadian Journal of Human Sexuality
- Article date:
- June 22, 2002
- Author:
CopyrightCOPYRIGHT 2002 SIECCAN, The Sex Information and Education Council of Canada. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT: Number of older brothers (or "fraternal" birth order) predicts a homosexual orientation in men but not in women. In this paper, I review recent research on the fraternal birth order effect. For example, I present a recent study using two national probability samples that indicates that number of older brothers increases homosexual attraction but not homosexual behaviour/experience in men. In addition, I present a study using Canadian data indicating that fraternal birth order may interact with height to predict sexual orientation in men such that a homosexual orientation is most likely to occur in men who have a high number of older brothers and a shorter ...