XYY theory Flashcards
1
Q
Hypothesis
A
Some crime may be attributable to a chromosomal abnormality
2
Q
XYY men are often referred to as…..
A
Supermales
3
Q
Which psychologist(s) is linked to the XYY theory
A
Jacob et al
4
Q
Statistics
A
15/1000 XYY men in the prison population
1/1000 XYY men in the general population
5
Q
An example of a ‘super-male’
A
Prolific Serial killer John Wayne Gacy
6
Q
Strengths
A
The hypothesis proved by Jacob et als study
Adler et al suggested that genetics have a partial impact on violent behaviour
7
Q
Weaknesses
A
genetic abnormalities are widespread throughout the general population and therefore cannot explain aggression
ignores a behaviourist approach
Theilgaard found no link between XYY and agression
