William McDougall

William McDougall FRS (; 22 June 1871 – 28 November 1938) was an early 20th century psychologist who spent the first part of his career in the United Kingdom and the latter part in the United States. He wrote a number of influential textbooks, and was important in the development of the theory of instinct and of social psychology in the English-speaking world. McDougall was an opponent of behaviourism and stands somewhat outside the mainstream of the development of Anglo-American psychological thought in the first half of the 20th century; but his work was known and respected among lay people. Biography He was born at Tonge, Middleton in the Manchester area on 22 June 1871, the second son of Isaac Shimwell McDougall and his wife Rebekah Smalley. His father was one of the McDougall brothers who developed self-raising flour, but concentrated on his own business as a chemical manufacturer.