Big Five Personality Test — Deep (120-Item IPIP-NEO-120)
A facet-level OCEAN profile: 30 facets across the 5 domains, from 120 public-domain IPIP items. About 30 minutes.
For each statement, rate how accurately it describes you — from Very Inaccurate to Very Accurate. There are no right answers. This is a self-reflection tool, not a clinical assessment.
Answers are collected in your browser (with local save-progress) and scored server-side — nothing stored, no logs, no profiles, no tracking. No signup.
Your progress is saved in this browser automatically — you can leave and come back.
Not a diagnostic tool. This assessment is for self-reflection and curiosity only. It is not intended to diagnose, treat, cure, or assess any mental-health, neurodevelopmental, or medical condition, and it is not a substitute for professional advice. If you have concerns about your mental health, please consult a qualified clinician.
Big Five — 30 facets & 5 domains
Scores are 0–100, relative to the 1–5 response scale. Each domain shows its 6 facets plus a domain summary. High = the facet describes you; low = the opposite describes you.
Want a faster overview? Try the 50-item Big Five quick test, or see your Jungian 16-type for a different lens.
About this instrument
This is the IPIP-NEO-120 — a 120-item, 30-facet inventory of the Five-Factor Model developed by John A. Johnson (2014) from items in the International Personality Item Pool (IPIP), created by Lewis R. Goldberg. It measures six facets of each Big Five domain: Neuroticism (N), Extraversion (E), Openness to Experience (O), Agreeableness (A), and Conscientiousness (C). The IPIP is public domain — free for any use, commercial or non-commercial, without permission or fee.
Johnson, J. A. (2014). Measuring thirty facets of the Five Factor Model with a 120-item public domain inventory: Development of the IPIP-NEO-120. Journal of Research in Personality, 51, 78–89.
This is not the MBTI® assessment. MBTI and Myers-Briggs are trademarks of The Myers-Briggs Company. The Big Five / OCEAN model is the consensus trait model in academic personality psychology. For self-reflection, not diagnosis.