AMERICAN PSYCHOLOGICAL ASSOCIATION, INCORPORATED, THE, was founded on July 8. 1892, at a meeting held at Clark university. Worcester, Mass.. attended by G. Stanley Hall. George S. Fullerton. Joseph Jastrow. William James, George T. Ladd. James McK. Cattell and J. Mark Bald win as the original members. The first meeting was held at Philadelphia in December of the same year. under the presidency of G. Stanley Hall. at which time 24 more members were elected. The object, as stated in the original constitution. was "to advance psychology as a science," and the association has never deviated from this guiding principle. Since the founding, annual meetings for the presentation of scientific papers have been held at the different psychological laboratories in December of every year. The association was incorporated in the District of Columbia in 1925. Throughout its history the standard of membership has been maintained at a high level. To be admitted to membership, the degree of doctor of philosophy in psychology is necessary together with publication of an important contribution in the scientific journals. In 1924 the association introduced the grade of associate membership.
The association publishes annually a year book and proceedings of the annual meeting and owns and publishes six psychological journals. The association in 1928 had 534 members and 165 associate members.