Question: who is responsible for developing the best-known theory of motivation the hierarchy of needs
Answer: Abraham Harold Maslow ( / ˈmæzloʊ / ; April 1 , 1908 -- June 8 , 1970 ) was an American psychologist who was best known for creating Maslow 's hierarchy of needs , a theory of psychological health predicated on fulfilling innate human needs in priority , culminating in self - actualization .