IPIP-NEO (300-item).
Personality: broadband models300 (10 per facet)
Five-Factor Model: 5 domains + 30 facets (public-domain proxy for the NEO-PI-R facet structure)
- Provisionally grouped under
- Length and format
- 300 (10 per facet). 5-pt Likert (very inaccurate - very accurate) (self-report questionnaire)
- Language versions
- Many community/research translations (the IPIP item pool has been rendered into 25+ languages incl. FR, ES, DE, IT, PT, NL, plus others); a European-French IPIP-NEO-300 adaptation exists
- Reference
- Goldberg, L. R. (1999). A broad-bandwidth, public-domain personality inventory measuring the lower-level facets of several five-factor models. Personality Psychology in Europe, 7, 7-28. https://ipip.ori.org
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- IPIP-NEO-120
120 (4 per facet). public-domain / open.
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