Which personality assessment measures introversion and extraversion?

The Eysenck Personality Questionnaire is designed specifically to assess personality traits, particularly focusing on dimensions like introversion and extraversion. Developed by Hans Eysenck, this assessment posits that these traits are fundamental aspects of human personality. The measurement of introversion and extraversion within this framework emphasizes how individuals interact with their environment and recharge their energy—introverts typically prefer solitary activities and reflection, while extraverts thrive in social settings and draw energy from others.

The differentiation between introversion and extraversion is central to Eysenck's theory of personality, making this questionnaire a direct tool for observing where individuals fall on that spectrum. While other personality assessments, such as the Big Five Inventory and the Myers-Briggs Type Indicator, do include aspects of introversion and extraversion, the Eysenck Personality Questionnaire is particularly focused on these traits as its core dimensions.