In this study we investigate whether the process of Attraction Selection and Attrition as described by Schneider (1984) is already operative prior to labor market entry, i.e., in the educational phase of careers. We focused on selection with regard to the locus of control personality trait because of its firm conceptual and empirical relevance in both content and process of choice. Specific hypotheses were proposed as to the sorting of different personality types in study programs leading to different prospective professional careers. The study was carried out in a sample of 164 Austrian students. We found strong support for our hypotheses in that (1) personality predicted specific study choices and (2) personality predicted different level...