Abstract
On the Holzinger-Swineford tests, the cluster dimensions found in a group of Factory children are compared with the dimensions found in a group of Suburban children. The typological structure in the two groups is also compared, and found similar, with notable exceptions. A similar series of analyses is made upon a sample of patients and a sample of normals in respect to MMPI item-clusters. Important differences are shown in the typological structure of the normale as compared with that of the patients.