Hermann Ebbinghaus Professions : Psychologist Born : January 24, 1850 Died : February 26, 1909 Browse All Authors Top 22 quotes by Hermann Ebbinghaus The aim of the tests carried on with these syllable series was, by means of repeated audible perusal of the separate series, to so impress them that immediately afterward they could voluntarily be reproduced. Hermann Ebbinghaus them impress aim tests These syllables, about 2,300 in number, were mixed together and then drawn out by chance and used to construct series of different lengths, several of which each time formed the material for a test. Hermann Ebbinghaus test chance together time Similar Authors Bruno Bettelheim psychologist Boris Sidis psychologist Anthony Greenwald psychologist Arnold Gesell psychologist Arno Gruen psychologist Anna Freud psychologist All Authors