Birth order and sexual orientation in women.
- 1 January 1997
- journal article
- Published by American Psychological Association (APA) in Behavioral Neuroscience
- Vol. 111 (6) , 1395-1397
- https://doi.org/10.1037//0735-7044.111.6.1395
Abstract
One of the world's largest databases on human sexuality was used to investigate whether lesbians, like homosexual men, have a later birth order relative to heterosexual comparisons. The women (N > 5,000) were interviewed by investigators at the Kinsey Institute for Sex and Reproduction from 1938 to 1963. The women were dichotomously classified as lesbian (n = 257) or heterosexual (n = 5,008). No significant birth order effect was observed. Results support theories of gender-specific mechanisms in the development of sexual orientation in women and men.Keywords
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