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Predictions for Sex of First Born Child Reflect Masculine and Feminine Characteristics in Male and Female Undergraduates

Predictions for Sex of First Born Child Reflect Masculine and Feminine Characteristics in Male... Previous research has identified physical and behavioral differences between parents who produce sons and those who produce daughters. However, the possibility that men and women have predictions about the sexes of their offspring based on these differences, or any other interoceptive cues, has not been investigated. We compared the dominance, sociosexual orientation, estradiol, testosterone, and 2D:4D ratios of men and women who predicted they would conceive a boy as their first child with those who predicted a girl. Women who predicted they would have a boy were more dominant and less sociosexually restricted than those who predicted they would have a girl. Men who predicted they would have a girl had higher salivary estradiol and higher (more feminine) 2D:4D ratios than those who predicted they would have a boy. Possible implications of these results are discussed in the context of evolutionary theory. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Evolutionary Psychology SAGE

Predictions for Sex of First Born Child Reflect Masculine and Feminine Characteristics in Male and Female Undergraduates

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References (56)

Publisher
SAGE
Copyright
© 2013 SAGE Publications Inc.
ISSN
1474-7049
eISSN
1474-7049
DOI
10.1177/147470491301100408
Publisher site
See Article on Publisher Site

Abstract

Previous research has identified physical and behavioral differences between parents who produce sons and those who produce daughters. However, the possibility that men and women have predictions about the sexes of their offspring based on these differences, or any other interoceptive cues, has not been investigated. We compared the dominance, sociosexual orientation, estradiol, testosterone, and 2D:4D ratios of men and women who predicted they would conceive a boy as their first child with those who predicted a girl. Women who predicted they would have a boy were more dominant and less sociosexually restricted than those who predicted they would have a girl. Men who predicted they would have a girl had higher salivary estradiol and higher (more feminine) 2D:4D ratios than those who predicted they would have a boy. Possible implications of these results are discussed in the context of evolutionary theory.

Journal

Evolutionary PsychologySAGE

Published: Oct 1, 2013

Keywords: 2D:4D; Testosterone; Estradiol; Dominance; Sociosexual Orientation; Sex-of-offspring Prediction; Masculine; Feminine

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