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The term psychogram was coined by Hollingworth in 1922, and now refers, in general, to any chart on which personality traits are marked according to a guiding psychological viewpoint. Such a profile, showing the quantitative relation between the magnitudes of all the traits concerned, has closer kinship with the whole personality than have any of the separate factors.
As a psychological "map", the contribution of several different factors to the personality as a whole can be more easily understood. With this chart, the same group of personality traits can be measured in a number of different persons, classifying different types of profile rather than analyzing the participant traits.