title: Editor's introduction to Tupes and Christal.
authors.affiliation: National Institute on Aging, NIH, MD.
authors.forename: R R
authors.initials: RR
authors.lastname: McCrae
mesh_terms: D006801:Humans; D008889:Military Personnel / Q000523:psychology*; D009042:Motivation; D010379:Peer Group; D010552:Personality Assessment / Q000706:statistics & numerical data*; D010553:Personality Development; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics; D013694:Temperament