About the Big 5 Personality Diagnosis

The Big Five personality model—also known as OCEAN—is the most empirically validated framework in modern psychology. It captures five broad traits that explain the vast majority of human behavioral variation. While commonly used in academic settings, most organizations still fail to leverage this powerful model for hiring, leadership development, or team composition.

The 100facets.ai Big 5 Personality Diagnosis delivers scientifically grounded, widely recognized insights into core personality traits that shape behavior and performance, with no administrative hassle. Using the proven Big Five framework, it provides accurate, validated results and clear, user-friendly reports with actionable feedback for personal and professional growth. Flexible options include self-assessments and 360-degree evaluations, while AI-guided coaching helps turn insights into practical strategies for improving performance, collaboration, and leadership.

Systematic Big 5 Personality Diagnosis Fact Sheet

• What it measures: Five core personality dimensions that shape individual behavior and performance:
  • Openness to Experience
  • Conscientiousness
  • Extraversion
  • Agreeableness
  • Neuroticism (Emotional Stability)
• Choice-based inputs, fast and scalable: In just 2 to 5 minutes, our AI-powered agent asks questions without common hassles to accurately reveal users’ personality traits.
• Holistic diagnosis: Participants can complete the assessment in their preferred language, generating a comprehensive, organization-wide personality profile.
• Actionable output: Our custom AI converts personality data into clear, prioritized insights that drive personal growth, team effectiveness, and leadership development.
• Enterprise ready: Secure, GDPR-compliant SaaS with administrator dashboards and downloadable reports for high-impact debriefs.
• Ideal use cases: Perfect for talent development, leadership coaching, team building, succession planning, and fostering a strong organizational culture.

Research Behind Big 5 Personality Diagnosis

The Big Five Personality Diagnosis by 100facets.ai is grounded in over six decades of psychological research into human personality. While the model itself is the product of many contributors, foundational work by Ernest Tupes and Raymond Christal in the 1960s first identified the recurring five-factor structure across different datasets.

The framework was later popularized and refined through the efforts of Lewis Goldberg, who coined the term “Big Five,” and Paul Costa and Robert McCrae, whose NEO Personality Inventory (NEO-PI-R) established the model’s use in both clinical and organizational settings.

The 100facets.ai team conducted an extensive review of empirical studies, psychometric tools, and applied organizational research to translate the Big Five model into a diagnostic that is not only scientifically robust, but also practical for teams, leaders, and individual development. Each item, scoring rubric, and output insight is mapped to validated constructs from personality psychology, ensuring the diagnosis reflects both trait stability and contextual adaptability.

Selected sources

1. Tupes, E. C., & Christal, R. E. (1961). Recurrent personality factors based on trait ratings
2. Goldberg, L. R. (1990). An alternative “description of personality”: The Big-Five factor structure
3. Costa, P. T., & McCrae, R. R. (1992). Revised NEO Personality Inventory (NEO PI-R)
4. John, O. P., Naumann, L. P., & Soto, C. J. (2008). Paradigm shift to the integrative Big Five trait taxonomy
5. McCrae, R. R., & Costa, P. T. (1997). Personality trait structure as a human universal
6. Judge, T. A., & Bono, J. E. (2001). Personality and transformational leadership: A meta-analysis