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Article: Birth Order and Sexual Orientation in a National Probability Sample.
- Article from:
- The Journal of Sex Research
- Article date:
- November 1, 2000
- Author:
CopyrightCOPYRIGHT 2000 Taylor & Francis Group, LLC. 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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We do not know what causes the development of sexual orientation, the erotic inclination/attraction for the opposite sex (heterosexuality), the same sex (homosexuality), or both sexes (bisexuality). However, there has been a substantial amount of empirical work and theory on this question in recent years (e.g., Bell, Weinberg, & Hammersmith, 1981; Bem, 1996; Blanchard, 1997; Ellis & Ames, 1987; Hamer & Copeland, 1994; LeVay, 1996; Singh, Vidaurri, Zambarano, & Dabbs, 1999). Scientific interest in this question occurs because sexual orientation is a fundamental aspect of human sexual variability, and thus researching this question can be an important pursuit for scientists ...