AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Allport F. Theories of perception and the concept of structure. New York: Wiley, 1955.2. Gough H. Heilbrun A. The Adjective Check List, manual. Palo Alto, Calif.: Consulting Psychologists Press, 1965.3. Keat D. A cluster and factor analysis of the occupational interests of five hundred male college students. Unpublished doctoral dissertation, Temple Univer., 1967.