Eysenck

Type theory

• Personality is inherited and can be described using traits e.g. Extroversion, Introversion, Neuroticism, Psychopathy

Eysencks Type Theory

• As described on the previous slide Eysenck believed in the traits of
• Neuroticism (stability)
• Introversion
• Extroversion
• 
• Caption: Eysencks 'wheel'

Eysencks study 1947

• Aim: Investigate personality differences
• Method: 700 servicemen completed a questionnaire which was analysed using factor analysis
• Results: He identified the dimensions seen on the 'wheel' in the previous slide
• Conclusions: Everyone can be placed on the 2 dimensions of personality.

Evaluation

• He used a limited sample (age and gender and occupation) BUT further studies have supported it
• He described a limited amount of personality types
• He used questionnaires to test personality but results could have been skewed by mood (EV's)
• He believed that personality is genetic but this does not account for personality changing over time as a result of experience

Study tip

• If asked to define extroversion, introversion or neuroticism then include an example to support what you say.
• Make a point, explain it with an example and say why this matters ....P.E.W

Personality Scales

• EPI: Eysenck Personality Inventory...series of yes/no questions to measure personality e.g. neurotic introvert or stable extrovert
• EPQ: Eysenck Personality Questionnaire...this can also be used to measure personality based on the 2 dimensions.
• In 1970 a further dimension of psychoticism was also added; those who score highly are cruel, aggressive, hostile and lacking in feelings.