Models of layered structure in personality are examined for conflict, fulfillment, and factor theories. These are compared with a Paradigm Case of layered structure derived from other sciences. Various instances in natural and social science fit the Paradigm Case more or less closely. Among personality models, those of conflict and fulfillment theories fit quite well except for parameters of volume and shape. Factor models vary also in not having homogeneous content in a particular stratum. Possible constructions are briefly suggested for further conceptualization and measurement of layered structure in psychological space. It is pointed out that approaches emphasizing the interaction of person and situation are not exempt from the necessity of understanding and assessing personality structure.