assistance of Sybil Eysenck, developed the three dimensions of personality. The three dimensions of personality are combinations of traits or factors that make up each dimension (Schultz & Schultz, 2016, p. 227). Originally, Eysenck wanted to study physics, but because he lacked the requisite academic background, he was suggested to study psychology. While psychology was given little respect in comparison to today, Eysenck dove into his education and career. Publishing 79 books, 1,097 journal articles