Psychology Test

Big Five Personality Test (Full)

Free Big Five personality assessment based on the public-domain IPIP scales

About 30–40 minutes 300 Question 30 facets IPIP-NEO-PI-R

This test is for self-reflection only. It is not suitable for hiring, clinical diagnosis, or other high-stakes decisions.

A comprehensive 300-item Big Five personality assessment using the public-domain IPIP-NEO-PI-R scale. Five core dimensions and 30 facets, ~30–40 minutes, completely free and anonymous.

Short on time?

The quick version uses 50 items and takes about 5 minutes. It gives you the 5 broad dimension scores without the facet breakdown — great for a first look or a quick refresh.

Big Five Quick Test · 50 items · ~5 min · 5 dimension scores
Go to the Quick Test

About the Big Five Full Test (IPIP-NEO-PI-R)

This tool uses the IPIP-NEO-PI-R — the public-domain, 300-item open equivalent of the Costa & McCrae NEO-PI-R, developed by Dr. Lewis R. Goldberg and hosted on the International Personality Item Pool (ipip.ori.org).

What is the Big Five?

The Big Five is the most widely accepted model of personality in academic psychology. It describes personality with five broad dimensions, each broken down into 6 finer facets (30 facets in total):

  • Openness (O) — Imagination, Artistic Interests, Emotionality, Adventurousness, Intellect, Liberalism
  • Conscientiousness (C) — Self-Efficacy, Orderliness, Dutifulness, Achievement-Striving, Self-Discipline, Cautiousness
  • Extraversion (E) — Friendliness, Gregariousness, Assertiveness, Activity Level, Excitement-Seeking, Cheerfulness
  • Agreeableness (A) — Trust, Morality, Altruism, Cooperation, Modesty, Sympathy
  • Neuroticism (N) — Anxiety, Anger, Depression, Self-Consciousness, Immoderation, Vulnerability

Test structure

300 statements, 10 per facet (60 per dimension). Rate each on a 5-point scale. Takes about 30–40 minutes in one sitting. Your answers are auto-saved as you go.

Source and validity

  • Author: Lewis R. Goldberg (Oregon Research Institute)
  • First published: 1999
  • Reference: Goldberg, L. R. (1999). A broad-bandwidth, public domain, personality inventory measuring the lower-level facets of several five-factor models. In I. Mervielde et al. (Eds.), Personality Psychology in Europe (Vol. 7). Tilburg University Press.
  • License: Public domain

Why the full version

The 300-item form gives you facet-level scores in addition to the 5 broad dimensions. This is much more useful for understanding your own patterns: e.g., you can score "High in Extraversion" while scoring low on Excitement-Seeking, which is a real and common pattern.

How to use your result

Look at both the 5-dimension profile and the 30-facet breakdown. Personality traits exist on a spectrum and are influenced by mood, life stage, and context. Use this as a starting point for self-reflection, not as a final verdict. Not suitable for hiring, clinical diagnosis, or other high-stakes decisions.

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How accurate is the 300-item Big Five test?

The IPIP-NEO-PI-R correlates strongly with the copyrighted NEO-PI-R (Costa & McCrae, 1992) — the academic gold standard — and is widely used in published research. It is suitable for both personal insight and serious self-study.

What's the difference between the quick and full versions?

The full version (300 items, ~30–40 minutes) gives you the same 5 broad dimensions PLUS 30 facet scores (6 per dimension). The quick version (50 items, ~5 minutes) gives you the 5 dimensions only.

How long does the full test take?

About 30–40 minutes in one sitting. Your answers are auto-saved as you go, but we recommend completing it in one go for the most consistent results.

What are the 30 facets?

Each Big Five dimension is broken down into 6 facets. For example, Extraversion splits into Friendliness, Gregariousness, Assertiveness, Activity Level, Excitement-Seeking, and Cheerfulness. Facet scores reveal much more specific patterns than the broad dimension alone.

Can my score change over time?

Yes. Big Five traits are relatively stable in adulthood, but they do shift with major life events, sustained practice, therapy, or mood. We recommend waiting several months between retakes and observing the trend.

Can I use this for hiring or diagnosis?

No. This tool is for self-awareness, team communication, and personal development. For high-stakes decisions, use a professionally administered assessment.

What does each dimension actually measure?

Openness = curiosity and imagination. Conscientiousness = self-discipline and organization. Extraversion = sociability and energy from others. Agreeableness = compassion and cooperation. Neuroticism = tendency toward negative emotions. The full version adds 30 facets that describe each dimension in more detail.