The security feelings are a syndrome. That is, the name "security" is a generalized label for many more specific feelings which overlap and intertwine, and which are all functions of one another. Because of this common character, we may group them together and consider them in their "wholeness," in their unitary rather than in their diverse qualities. The word "security" or "insecurity" is intended as a label for this peculiar aspect of "wholeness" that may be discerned in the multiplicity of particular symptoms with which we shall deal. To describe its wholeness or unitariness the author has used the concept of "psychological flavor." We may use a homely illustration to illuminate the meaning of this phrase. In a stew, a potpourri, a concoction made of many diverse elements, but nevertheless having a unique flavor of its own, this flavor permeates all the diverse elements in the stew.The syndrome has a certain conceptual life of its own, laws and rules by which it functions and changes and which may for convenience be considered apart from the movements of any particular characteristic which is part of the syndrome. These laws we hope to deal with at length in a future paper. Here we wish to stress only the fact that there may be a unity in diversity and that we shall now deal with a unity rather than a diversity. It would also be well at this point to make more explicit the role that we feel syndromes play in the human personality. They are not to be thought of as "traits," a number of which may be added up, their sum constituting a personality, even though they are separate from each other. A syndrome, whether it be security feeling, self-esteem, with which we have already dealt, emotionality, or activity, is a general flavor which can be detected or savored in practically everything that the person does, feels.'^This process of iteration is already well known to the statistician and test constructor as a means of approaching more and more closely internal consistency in a test which initially was vague and uncertain.