Researchers & experts
Quick answer: This index lists encyclopedic reference profiles of researchers associated with major personality frameworks (e.g. Big Five, NEO inventories). Pages use only verifiable public information and include independence disclaimers.
Published profiles
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Paul T. Costa Jr.
Paul T. Costa Jr. is an American psychologist widely cited for work on personality structure and trait assessment. Public sources describe him as a co-developer of the Five-Factor Model and the NEO personality inventories, in long-standing collaboration with Robert R. McCrae.
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Robert R. McCrae
Robert R. McCrae is an American psychologist known in public sources for co-developing the Five-Factor Model of personality and the NEO inventories with Paul T. Costa Jr., and for research on trait structure across the lifespan.
FAQ
- Are these experts affiliated with PersonalityTester?
- No. Profiles are independent reference pages. No endorsement or affiliation is implied unless explicitly documented with a primary source.
- How are expert pages created?
- Only from verifiable public sources (e.g. encyclopedic entries, DOI records). Sections without sources remain unpublished.