Eysencks Theory Flashcards
General Personality Theory
Individuals inherit certain type of nervous system that affects ability to learn/adapt to environment
. Behaviour represented on 2 dimensions:
- Introversion/Extroversion (E)
- Neuroticism/Stability (N)
Later added = psychoticism (P)
Eysenck thought criminals were high PEN
Measuring Criminal Personality
Developed Eysenck Personality Inventory - from of psychological test, locates respondents along E and N dimensions to determine personality type
Characteristics of PEN
Psychoticism = Aggressive, Assertive, Unsympathetic
Extroversion = Sociable, Dominant, Active
Neuroticism = Anxious, Hypochondriac, Moody
Biological Basis
Extraverts have underactive nervous system = seek excitement, risk - taking
Neurotic = tend to be nervous, jumpy, behaviour difficult to predict
Psychotic = individuals tend to have high tostesterone
Role of Socialisation
Saw criminal behaviour as developmentally immature, selfish and concerned with immediate gratification
Evaluation (Strengths)
Evidence supporting theory
- Compared 2070 male prisoner scores on EPI with 2422 male control group subdivided into age groups
. Prisoners on average scored higher on PEN
Evaluation (Weaknesses)
Evidence contradicting
- Farrington reviewed several studies, offenders scored higher on P but not on E and N
Cultural Bias
- study of Hispanic and African American offenders in NY and divided into 6 groups based on criminal history and nature of offence
. All found to be less extraverted than non-criminal group