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Male aggression and testosterone
Men are more aggressive in every culture
than females.
Testosterone: Male sex hormone
- Secreted by adrenaline glands and testes,
needed to produce sperm, develop male
reproductive organs and produce male
features (bodily hair/deep voice.
Hormone: Chemicals produced by body &
send msg's to organs in body via
bloodstream.…read more

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Aggression in animals
How psychologist studied animals: Adding or
removing testosterone and taking out testes lead.
FOUND: castrating animals lowers aggression, if
animal is injected again, aggression is restored to that
similar before castration.
FOUND: Testosterone is responsible for aggression
Cannot test on humans as no input of testosterone
would be made. ­ Its not ethical.
Psychologist use animals, though are different in
physically wise and behavioral wise.
Aggression in humans is less and can consider
consequences and reasons in actions than animals…read more

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Aggression in humans
· How do psychologist test testosterone: Blood
samples compare those with aggression.
· Correlation studies: Study to see link between
two variables.
· C.S found that relationship between high
testosterone levels and questionnaire results
showing greater reported aggression. dies
S t u
· Not certain whether testosterone causes Cont
. S =
increased testosterone. C…read more

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Evaluation…read more

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· Animals:Clear cause and
effects relationship between
testosterone and aggression
· Humans: Studies show
relationship between
testosterone and aggression
in correlation studies.…read more

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