Baker et al., 2007

Question 1

Biological aspects

Answer 1

-genetic similarities
-genes and behavior
-twin and kinship study

Question 2

Research methods

Answer 2

Correlational study

Question 3

Ethical consideration

Answer 3

Informed consent

Question 4

Methods

Answer 4

-over 1,000 MZ and DZ twins and triplets (9-10 years) from diverse backgrounds in South California were studied.
-Multiple tests were used to measure levels of antisocial behavior including self-report, teacher, and caregiver questionnaires.)
- ASBs included levels of aggression, psychopathic traits, and disordered conduct (eg. misbehaving).

Question 5

Results

Answer 5

Generally speaking, the results showed that heritability was around 50%, meaning that differences in antisocial behavior (including aggression) in children are about 50% due to genetics and 50% due to other factors.

Question 6

Conclusions

Answer 6

The use of twins shows that antisocial behavior is a combination of genetics and the environment,

Question 7

Aim

Answer 7

To examine to what extent antisocial behavior (ASB) is genetically based.