personalistic psychology
a school of psychology that emphasizes personality as the core of the field (see personalism), the uniqueness of every human being, and the study of an individual’s traits (and organization of traits) as the key to personal understanding and adjustment to the environment. Personalistic psychology originated with German psychologists Eduard Spranger (1882–1963) and William Stern, as well as other Europeans, and was developed in the United States by Gordon W. Allport.