Robert McCrae is a prominent psychologist known for his work in personality psychology. He is best recognized for developing the Five Factor Model of personality, which identifies five key traits: openness, conscientiousness, extraversion, agreeableness, and neuroticism. This model has significantly influenced how psychologists understand human behavior and personality assessment. In addition to his research, McCrae has authored numerous articles and books on personality and its implications in various fields, including psychology and mental health. His contributions have helped shape modern personality theory and have been widely adopted in both academic and practical applications.