The Eysenck Personality Inventory

The Eysenck Personality Inventory (EPI) is a psychological questionnaire designed to measure two main personality traits: extraversion-introversion and neuroticism. Extraversion reflects how outgoing and social someone is, while neuroticism indicates emotional stability or tendency toward anxiety and mood swings. The test also assesses a third scale, psychoticism, related to traits like aggressiveness and impersonal attitudes, but it's less emphasized. The EPI helps psychologists understand personality patterns, which can inform treatment or personal development. It uses a series of yes/no questions to provide a profile of an individual's characteristic tendencies.