AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Thorndike R. L. , & Hagen, Elizabeth. 10,000 careers. New York: Wiley, 1959.2. Thorndike R. L. , & Elizabeth Hagen ,. Characteristics of men who remained in and left teaching. Coop. res. Proj. No. 574 (SAE 8189). Washington, D. C: U. S. Office of Education, Dept. Health, Education, and Welfare, n.d.