Many of those who have worked with the Rorschach Test have felt that the test findings describe so large a sector of the personality that numerical evaluation of it is out of the question. This book is the first of a series of studies in standardization, and an attempt to establish the degree to which the Rorschach Test can be quantified and standardized. It is not concerned with the validation of the various Rorschach signs but deals with a new sign which represents as far as it is possible the test as a whole. Five hundred and eighteen 'unanimously and competently and diagnosed cases from every clinical category' were investigated, including forty-six