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Research Instrument
Personality // IPIP-Big5-100 Open Access

IPIP Big Five 100-Item Personality Markers

The extended public-domain 100-item Big Five personality marker set (20 items per domain).

Estimated Time
~18 mins
Instrument Scale
Standardized Items
Administration
Self-Administered
Scoring Engine
Automated Real-Time

Scale Overview & Construct

The extended public-domain 100-item Big Five personality marker set (20 items per domain).

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

Purpose & Measurement Objectives

This is the extended, 100-item public-domain measure of the Big Five personality domains — Extraversion, Agreeableness, Conscientiousness, Emotional Stability, and Intellect — using 20 items per domain instead of the classic 50-item version's 10. Taking it gives you a more precise domain-level Big Five profile than the 50-item marker set, while still not breaking each domain down into narrower facets.

Instrument Specifications

Target Population
Adults
Administration Format
Self-Administered
Intended Domain / Purpose
Research & Empirical Study
Recommended Age Bracket
18+
Duration & Pacing
18 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: Goldberg, L. R. (1992). The development of markers for the Big-Five factor structure. Psychological Assessment, 4(1), 26-42. This is not a diagnostic tool. Domain 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 100-item self-report inventory covering only the 5 broad domains (no facet-level breakdown), 20 items each. 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: Goldberg, L. R. (1992). The development of markers for the Big-Five factor structure. Psychological Assessment, 4(1), 26-42. This is not a diagnostic tool. Domain 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.

Free
Open Psychometric Access
OPEN ACCESS
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  • Immediate server-side scoring and dimensional profile
  • Official downloadable diagnostic PDF report
  • Zero ads • Anonymous & encrypted response storage
  • Research Instrument psychometric calibration
Identifier IPIP-Big5-100
Category Personality
Scale Standard Standardized
License Status CC BY 4.0 Open Scale
PsiQ Psychometric ID #253
IPIP Big Five 100-Item Personality Markers
Free Open Access
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