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Research Instrument
Personality // IPIP-AB5C Open Access

IPIP-AB5C Personality Circumplex

A public-domain 445-item measure of 44 narrow personality facets from the AB5C circumplex model.

Estimated Time
~50 mins
Instrument Scale
Standardized Items
Administration
Self-Administered
Scoring Engine
Automated Real-Time

Scale Overview & Construct

A public-domain 445-item measure of 44 narrow personality facets from the AB5C circumplex model.

Psychometric Instrument Likert Self-Report Dimensional Breakdown Server-Side Validated

Purpose & Measurement Objectives

The IPIP-AB5C is a public-domain measure built on the Abridged Big Five-Dimensional Circumplex model, which maps 44 narrow personality facets onto the space around the Big Five domains. Rather than one score per broad domain, it gives you a score on each of 44 specific facets — from Assertiveness and Leadership to Tenderness and Tranquility — capturing fine shades of personality that sit between and around the standard Big Five traits. Taking it gives you the most granular personality facet profile on this platform, useful for spotting specific tendencies that a broader Big Five or CPI-style profile can blur together.

Instrument Specifications

Target Population
Adults
Administration Format
Self-Administered
Intended Domain / Purpose
Research & Empirical Study
Recommended Age Bracket
18+
Duration & Pacing
50 Minutes (Self-Paced)
Access License
Open Creative Commons

Academic Citation & Instrument Provenance

When referencing this instrument in research, academic theses, or clinical institutional audits, please cite the original author publication:

License: Public Domain (International Personality Item Pool, ipip.ori.org). Citation: Hofstee, W. K. B., de Raad, B., & Goldberg, L. R. (1992). Integration of the Big Five and circumplex approaches to trait structure. Journal of Personality and Social Psychology, 63(1), 146-163. https://doi.org/10.1037/0022-3514.63.1.146. This is not a diagnostic tool. Facet scores reflect this test's own item pool only — they are not compared against a published clinical or population norm; no such norm has been entered for this instrument.

Governance, Boundaries & Ethical Use

Construct Boundaries & Interpretive Limitations

This is a 445-item self-report inventory covering 44 separate facets; individual facet scores are based on 5 to 14 items each, so shorter facets are less precise than longer ones. Results reflect how you currently see yourself, not an objective or clinical evaluation of personality.

License: Public Domain (International Personality Item Pool, ipip.ori.org). Citation: Hofstee, W. K. B., de Raad, B., & Goldberg, L. R. (1992). Integration of the Big Five and circumplex approaches to trait structure. Journal of Personality and Social Psychology, 63(1), 146-163. https://doi.org/10.1037/0022-3514.63.1.146. This is not a diagnostic tool. Facet scores reflect this test's own item pool only — they are not compared against a published clinical or population norm; no such norm has been entered for this instrument.

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Identifier IPIP-AB5C
Category Personality
Scale Standard Standardized
License Status CC BY 4.0 Open Scale
PsiQ Psychometric ID #243
IPIP-AB5C Personality Circumplex
Free Open Access
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