Matrix of Personalities
Composed by Dr. Alvin Gates in 1947
Alvin Jacobson started at Rutgers when he was 16 years old as a science major. Many never learned that Alvin was an amateur psychologist and while studying science he observed and developed a matrix of personalities that can be useful to explain why the world views people the way that it does, independently of how one views themselves. He identified four different types of people.