Northstarself
BIG FIVE · IPIP-50

Free Big Five Personality Test

The most scientifically respected model of personality, measured with the public-domain IPIP-50. Fifty questions, about seven minutes, instant results.

What the Big Five measures

The Five-Factor Model (often called OCEAN) is the most widely validated framework in personality psychology. Rather than sorting you into a single type, it places you on five independent spectrums:

Openness

Intellectual curiosity, imagination, and openness to new experiences and ideas.

Conscientiousness

Organization, self-discipline, dependability, and goal-directed behavior.

Extraversion

Sociability, assertiveness, and the tendency to draw energy from others.

Agreeableness

Compassion, cooperation, warmth, and trust in other people.

Neuroticism

Sensitivity to stress and the tendency to experience negative emotion.

Is this test accurate?

This test uses the IPIP-50 (International Personality Item Pool Big-Five Factor Markers), developed by Lewis R. Goldberg and released into the public domain. The IPIP scales have been used in thousands of peer-reviewed studies and show strong reliability and validity. Your scores reflect how you answered today; personality sits on a spectrum and can shift over time, so treat the results as an insightful snapshot rather than a fixed label.