Robert McCrae and Paul Costa are American psychologists best known for their development of the Five-Factor Model (FFM) of personality, commonly referred to as the “Big Five” personality traits. Their work has become one of the most widely accepted and utilized frameworks in personality psychology, offering a comprehensive approach to understanding individual differences in personality….
Raymond Cattell was a British-American psychologist whose work on the structure of personality has had a profound impact on the field of psychology. He is best known for developing the 16 Personality Factor (16PF) model, a foundational tool in the study of personality traits. Raymond Cattell was born on March 20, 1905, in England. He…
Katharine Cook Briggs was born on January 3, 1875, in Michigan, USA. She was a highly educated woman for her time, with a deep interest in psychology, education, and human development. Her daughter, Isabel Briggs Myers, was born on October 18, 1897. From an early age, Isabel shared her mother’s intellectual curiosity and passion for…
Carl Jung, a Swiss psychiatrist and psychoanalyst, stands as one of the most influential figures in the history of personality testing. His pioneering work in the early 20th century laid the groundwork for many of the personality assessments and theories that are still in use today, making his contributions both foundational and enduring. Born on…
Alfred Adler was an Austrian medical doctor, psychotherapist, and founder of the school of Individual Psychology. His theories, especially those related to the inferiority complex and the importance of social connections, have significantly influenced the field of personality psychology and the way we understand human behavior today. Alfred Adler was born on February 7, 1870,…
