The diagnostic Profile which we have set up serves the systematic assessment of childhood disturbances by seeing the picture of any given child against the background of a developmental norm into which the state of his inner agencies, his various functions, conflicts, attitudes, and achievements have to be fitted. In our psychoanalytic theory such developmental sequences are laid down so far as certain circumscribed parts of the child's personality are concerned. With regard to the development of the sexual drive, for example, we possess the sequence of libidinal phases (oral, anal, phallic, latency period, preadolescence, adolescent genitality) which, in spite of considerable overlapping, correspond roughly with specific ages. With regard to the aggressive drive we are already less precise and are usually content to correlate specific aggressive expressions with specific libidinal phases (such as biting, spitting, devouring with orality; sadistic torturing, hitting, kicking, destroying with anality; overbearing, domineering, forceful behavior with the phallic phase;