A Psychologist is a professional who studies the human MIND and behavior. They often use scientific methods to analyze and understand mental processes and behavior. The term 'Psychologist' can be broken down into two words: 'PSYCHO' meaning 'MIND' and 'logist' meaning 'one who studies'. Two notable psychologists are Sigmund Freud, the founder of psychoanalysis, and Carl Jung, the founder of analytical psychology. Freud was an ANALYST, which is a seven-letter word, and Jung was a four-letter word.