Eysenck’s Type Theory

Stable (reliable and predictable)

Extroversion (likes social affiliation)

Introversion (avoids social contact)

Neurotic (extreme emotions and unreliable)

“People don’t have one type of personality or another, they lie on a scale of traits”

This research led to the construction of the EPQ and EPI (Eysenck’s Personality Inventory)

Eysenck regarded personality as largely resulting from inherited (innate) tendencies.

He measured these inherited characteristics through a Personality Inventory (EPI, 1964), and personality questionnaire (1975)

He used factor analysis to identify general trends.

Therefore identifying 2 major personality dimensions on a continuum

Extroversion – Introversion

Stable - Neurotic