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Marriage and fatherhood associated with lower testosterone in males

Marriage and fatherhood associated with lower testosterone in males. Gray, P. B., Kahlenberg, S. M., Barrett, E. S., Lipson, S. F. & Ellison, P. T. (2002). Marriage and fatherhood are associated with lower testosterone in males. Evolution and Human Behavior, 23, 193 – 201. Carlie Smith

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Marriage and fatherhood associated with lower testosterone in males

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  1. Marriage and fatherhood associated with lower testosterone in males Gray, P. B., Kahlenberg, S. M., Barrett, E. S., Lipson, S. F. & Ellison, P. T. (2002). Marriage and fatherhood are associated with lower testosterone in males. Evolution and Human Behavior, 23, 193 – 201. Carlie Smith Bailey Jackson Amanda Lee Christine Requa

  2. Hypotheses 1) T levels would be lower in married men than unmarried men 2) T levels would be lowest in men with children 3) Marriage duration and male spousal investment will negatively correlate with T levels among married men without children 4) Age of male’s youngest child will positively correlate with T levels 5) Measure of male spousal investment will negatively correlate with T levels Gray, P. B., Kahlenberg, S. M., Barrett, E. S., Lipson, S. F., & Ellison, P. T. (2002). Marriage and fatherhood are associated with lowertestosterone in males. Evolution and Human Behavior, 23(3), 193-201. http://dx.doi.org/10.1016/S10

  3. Method & Procedure • n = 58 (29 unmarried men, 14 married men without children, 15 married men with children) • M = 29.6 • Collected four saliva samples to measure T levels (2/morning; 2/evening) • Self-report questionnaire surveying demographic, marital, and parenting backgrounds, stress inventory, spousal investment measure and male parenting effort measure. Gray, P. B., Kahlenberg, S. M., Barrett, E. S., Lipson, S. F., & Ellison, P. T. (2002). Marriage and fatherhood are associated with lowertestosterone in males. Evolution and Human Behavior, 23(3), 193-201. http://dx.doi.org/10.1016/S10

  4. Results • Men without children had lower evening T levels than unmarried men • Greater spousal investment corresponded with lower evening T levels • In the evening, but not morning male T levels consistent with predicted effects of relationship and parental status Gray, P. B., Kahlenberg, S. M., Barrett, E. S., Lipson, S. F., & Ellison, P. T. (2002). Marriage and fatherhood are associated with lowertestosterone in males. Evolution and Human Behavior, 23(3), 193-201. http://dx.doi.org/10.1016/S10

  5. Results Cont...

  6. Results Cont...

  7. Critical Review • Sample only taken from Boston • Future research: conduct study cross-culturally or among polygamous species to compare T levels

  8. Video Clip: Fatherhood

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