Raymond Cattell is an American and British psychologist who was from Hilltop, near Birmingham , England , he was recognized as one of the most influential psychologists of the 20th century, Cattell is best known for his development of the 16 Personality Factors model, developed over several decades of research.
Hans Eyseneck was a psychologist born in Germany (Berlin , German Empire) , who spent his professional career in Great Britain. Hes best known for his work on the intelligence and personality traits , even though he worked with multiple areas within psychology.
William Herbert Sheldon Jr. was an american psychologist and numismatist from Warwick, Rhode Island.He is best known for his theory associating physique, personality, and delinquency.
The Big Five personality traits, otherwise known as the five factor model, refers to five broad dimensions used by these psychologists to describe human personality. The five factors are: openness(being able to try new things),conscientiousness(being careful), extravert(being outgoing),agreeableness(being kind , sympathetic,etc.), and neuroticism(having anxiety,fear,moodiness,etc.).
“In psychology, trait theory is an approach to the study of human personality. Trait theorists are primarily interested in the measurement of traits, which can be defined as habitual patterns of behavior, thought, and emotion.” The trait theory to me is basically a saying that if your moms always mean then you're going to be mean , if your fathers an intelligent person or even a funny person then you'll be the same as them that's what i think the trait theory is , I suspect that we get traits from our parents and they get it from there parents , etc.
Twin Study "Nature vs Nurture"
- When twins get separated they both have anxiety
- Twins wont be separated and will never be separated and shouldn't be separated