Warren Norman

Warren Norman (1930-1998) was a US psychologist who further explored and researched the personality -descriptive terms listed by Allport and Odbert in the 1960's. Throughout this process his goal was to build a better-structured and more precise taxonomy of personality traits. He added some newer and more relevant terms and removed terms that had fallen out of use. In the process of reworking the Allport and Odbert taxonomy he cut the list of relevant personality descriptors from 17,953 words to 2,797 trait-descriptive words that would eventually serve as the basis for Peabody and Goldberg's research for the publication of their work on the Big Five Personality Traits.

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