IPIP-NEO (300-item).

IPIP-NEO-300

What it measures

Five-Factor Model: 5 domains + 30 facets (public-domain proxy for the NEO-PI-R facet structure)

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

Normative data

Languages	Countries	Breakdown	Status	Grade	N
en	UK+IE	age-band	HELD_REAL	A	18591
en	US+UK	gender+age	COLLECTED	B	1419
en	multi (107 countries)	gender+age+country	COLLECTED	A	248112
non-en	multi	facet NATIVE-language	SEARCHED_NONE	-	-
11 langs	11 sites	cohort10+15 x gender x lang x site	COLLECTED	A	13768

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

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

https://ipip.ori.org