personality could be better understood by investigating the unconscious mind. He is most famous for the development of the Thematic Apperception Test (TAT ), a widely used projective measure of personality.
Intelligence test into English and used it to test and classify students with mental retardation. Goddard was an extreme nativist who recommended that those with mental deficiencies be sterilized or institutionalized. The number of immigrants allowed into the United States was greatly reduced, as a result of Goddard's efforts.