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Updated: Apr 21, 2026

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
Published on: March 2, 2011
Sex differences in the association between testosterone and violent behaviors
Shervin Assari1, Cleopatra H Caldwell1, Marc A Zimmerman2
1Department of Health Behavior and Health Education, School of Public Health, University of Michigan, Michigan, United States ; Center for Research on Ethnicity, Culture and Health, School of Public Health, University of Michigan, Michigan, United States.
Testosterone levels correlate with violent behavior in young adult females, but not males, in a community sample. This study highlights sex differences in biological factors influencing aggression.
Area of Science:
- Forensic Psychology
- Neuroendocrinology
- Criminology
Background:
- Previous research on testosterone and violent behavior yielded inconsistent results.
- Most studies focused on clinical samples of severely violent males.
- Limited research explored sex differences in community samples.
Purpose of the Study:
- To investigate sex differences in the association between testosterone and violent behaviors.
- To examine this relationship in a community sample of young adults in the United States.
Main Methods:
- Longitudinal study of an inner-city population from adolescence to adulthood.
- Measured testosterone levels and violent behaviors in 257 young adults (average age 22).
- Utilized regression analysis to assess associations in both male and female samples.
Main Results:
- A significant positive correlation was found between testosterone levels and violent behaviors in females.
- No significant association between testosterone and violent behaviors was observed in males.
- The association in females remained significant after controlling for socioeconomic status, age, education, and race.
Conclusions:
- Findings offer insights into biological mechanisms underlying violent behavior in young adult females.
- The study enhances understanding of sex differences in community-based violent behavior correlates.
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