PAPER 3 - FORENSIC PSYCHOLOGY - psychological explanations of offending behaviour (Eysenck, Cognitive explanations, differential association theory, psychodynamic explanations) Flashcards
What is personality?
- A mix of biological tendencies combined with learning experiences
- Eysenck proposed that criminals have a specific mix that causes otterains benaviour, therefore criminality can be explained by specific personality traits
What are the 3 diversions that Eysenck believed contributed to criminality?
- extraversion
- neuroticism
- psychoticism
What is extraversion?
- opposite of intraversion
- extraverts are characterised by outgoing, having positive emotions but may get bored easily, they enjoy risk and danger
what are extraverts biologically determined by?
- overall level of arousal in a persons nervous system
- extraverts have less innate cortical arousal so seek external stimulation
why does extraversion suggest criminal behaviour?
- less likely to be affected by negative outcomes e.g. punishment
- seek external stimuli e.g. crime, for arousal
- get bored easily and take risks so could risk committing a crime
what is neuroticism?
- opposite of stability
- when an individual experiences more negative emotions
what is neuroticism biologically determined by?
- sympathetic NS
- tendency to overreact in situations of threat
why does neuroticism suggest criminal behaviour?
making rash decisions so individual is more likely to interpret ordinary situations as threatening
what is psychoticism?
- opposite of normality
- high levels of testosterone (so more prevalent in men)
what is psychoticism biologically determined by?
hormones
why does psychoticism suggest criminal behaviour?
- lack of empathy and conscience
- aggression
- impulsivity
- leads to offending behaviour
what is the role of socialisation in offending behaviour?
- socialisation is something children are taught to become more able to delay gratification and be more socially oriented
- Eysenck suggested those with high E and N scores had a NS that made them difficult to condition
- therefore they’re less likely to learn anxiety responses to antisocial behaviour and act more antisocial
what research support is there for Eysenck’s theory?
- study compared 2070 male prisoners’ scores on Eysenck’s personality questionnaire, with 2422 controls
- prisoners scored higher average scores than controls
- therefore aggress with predictions from the theory that prisoners score higher in all 3 dimensions
HOWEVER - Farrigton conducted a meta-analysis of relevant studies and reported that offenders tended to score high on measures of psychoticism, but not extraversion and neuroticism
- there’s also inconsistent evidence for differences on EEG measures between extraverts and intraverts which causes doubts for Eysenck’s theory
what is the limitations of ‘too simplistic’ of Eysenck’s personality theory?
- proposes that all offending behaviour can be explained through personality alone
- Moffitt drew distinction between offending behaviour that only occurs in adolescence and that continues into adulthood
- argued personality alone was a poor predictor of how long offending behaviour would go on for, in the sense of whether someone is likely to become a ‘career offender’
- thought personality traits as well as environmental factors influence offending behaviour
how are cultural factors a limitation of Eysenck’s theory?
- criminal personality may vary according to culture
- researchers studied Hispanic and African-American offenders in a maximum security prison in New York, and divided them into groups based on offending history and nature of offences
- found that in all groups there were less extraverts than non-offender control group whereas Eysenck would expect them to be more extravert
- suggested this was because sample was a very different cultural group investigated by Eysenck
- may lack generalisability
how is ‘measuring personality’ a limitation of Eysenck’s theory?
personality may not be able to be ‘scored’ as in the EPQ and suggests personality is too complex and dynamic to be quantified
what was the study by McGurk and McDougal?
- AIM: to investigate link between personality type and criminality
- 100 students classed as delinquents and 100 non delinquents completed EPQ and calculated scores
- results: significant differences in scores of all 3 dimensions between both groups, delinquent group had combination of high P, E and N scores
what can be concluded from McGurk and McDougal’s study?
there is a relationship between personality (E, N and P) and delinquent behaviour
what are the evaluation points of McGurk and McDougal’s study?
SAMPLE:
✔ use of control group
X only 100 students
X student sample
METHOD:
X correlation
X self report
OTHER POINTS:
X reductionist (only looks at personality explaining offending behaviour)
X deterministic
what are the 2 cognitive explanations for offending behaviour?
- cognitive distortions
- levels of moral reasoning (Kohlberg, 1969)