Granville Stanley Hall (1844 - 1924) the creator of the first U.S. Experimental psychology laboratory, founded and became the first president of the American Psychological Association, and invited Freud to Clark University to give a series of lectures.
Hence, Hall helped Psychoanalysis receive international recognition. Many of the beliefs contained in his two-volume book on Adolescence are now considered incorrect. Nonetheless, that work is currently seen as an important pioneering effort in educational, child, and adolescent psychology and in parent education and child welfare programs.