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Flashcards in Biological explanations - genetics Deck (8)
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1
Q

What do twin studies suggest about criminal behaviour?

A

The concordance rate suggests there is a biological link

2
Q

What did Raine find?

A

Monozygotic twins have a 52% concordance rate and dizygotic twins a 21% concordance rate

3
Q

What is the problem with genetic explanations?

A

There is no criminal gene

4
Q

Who conducted a family study?

A

Farrington

5
Q

What did Farrington find?

A

Offending is strongly concentrated in families

6
Q

What are adoption studies used to determine?

A

Whether biology or environment cause criminal behaviour

7
Q

What is the diathesis-stress model of crime?

A

Having a genetic predisposition to crime and being in stressful environments makes you more likely to activate those genes and commit crime, while being in a stress-free environment leaves those genes dormant

8
Q

What did Mednick find?

A

Having no criminal parents led to 13.5% committing a crime, when either biological or adopted adults are criminal, 20% committed a crime, and 24% when both sets had a criminal record