Eysenck developed the psychological theory of the criminal personality to explain offending behaviour
The Criminal Personality is an individual who scores highly in extraversion, neuroticism and psychoticism, cannot be easily conditioned, and appears cold & unfeeling
The Biological basis for extraversion is that extraverts have an underactive nervous system so constantly seek stimulation and are likely to take risks
The Biological basis for neuroticism is that neurotics have a high level of reactivity in the sympathetic nervous system so respond quickly with instability, making behaviour difficult to predict
The Biological basis for psychoticism is that psychotics may have higher levels of testosterone so are unemotional and prone to aggression
Eysenk viewed offending behaviour as developmentally immature as it is selfish and involved immediate gratification
Socialisation explains that children with difficult to condition nervous systems are less likely to learn anxiety responses anti-social impulses
There is research to support Eysenck's theory e.g. Eysenk
Eysenk used the Eysenk personality questionaire on 2070 male prisoners and found higher average scores for the three traits
There is counter-evidence for Eysenk's theory e.g. Farrington et.al.
Farrington et.al. conducted meta-analysis of relevant studies and only found higher measures for psychoticism
The Criminal Personality may be too simplistic as personality traits poorly predict whether someone will be become a 'career offender'
A Career Offender is someone who continues offending behaviour into adulthood