Raymond Bernard Cattell (1905 –1998) was a British born American psychologist and researcher known for his psychometric research into intrapersonal psychological structure (16 PF). He was educated in Britain and was awarded PhD in 1929 from the University of London. Raymond Cattell tried to further advance the trait approach advocated by Allport. He made many contributions to psychology but is most renowned for his theory of personality and the discovery 16 underlying traits. #CattellTraitTheoryOfPersonality #CattellTheoryOfPersonality #TheoryOfPersonality #TraitTheory #TheoryOfPersonality #EducationPsychology #Psychology