This theory was modified by Clayton Alderfer in his essay "Existence, Relatedness, and Growth." Put 
This theory was modified by Clayton Alderfer in his essay "Existence, Relatedness, and Growth." Put forth in Toward a Psychology of Being, its creator studied "exemplary people" such as Eleanor Roosevelt. Typically represented pictorially by a (*) pyramid, its originator claims that lower levels must be reached before one can begin to reach higher levels. Its highest level is achieved when one becomes all he is capable of being and is known as self-actualization. For 10 points, name this organization of human requirements first postulated by Abraham Maslow.
This theory was modified by Clayton Alderfer in his essay "Existence, Relatedness, and Growth."
Maslow's hierarchy of needs