He lived 1884 to 1922 and developed standardized personality test {Rorschach test, Rorschach} using inkblots for free association [1921].
He lived 1898 to 1977. Descriptive personality theory {type theory, Sheldon} postulates that people have some personality types, which depend on a main trait or trait set: ectomorphy, mesomorphy, or endomorphy.
He lived 1905 to 1998. Descriptive personality theory {trait theory} lists 35 overt personality manifestations {surface trait} caused by 16 basic factors {source trait}. Source traits are values in ranges between two extremes: reserved/outgoing, less intelligent/more intelligent, affected by feeling/emotionally stable, submissive/dominant, serious/happy-go-lucky, expedient/conscientious, timid/adventurous, tough minded/sensitive, trusting/suspicious, practical/imaginative, self assured/apprehensive, conservative/experimenting, forthright/shrewd, self sufficient/group dependent, uncontrolled/controlled, and relaxed/tense.
He lived 1897 to 1967 and studied personality and expressive behavior. Personality traits are pervasive, central, or weak, as determined by trait frequency, range, and intensity.
He lived 1916 to 1979 and studied field dependence and cognitive styles.
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Date Modified: 2022.0225