„The highly diversified models of provision in countries such as Germany, the Netherlands, Denmark and Austria can promote high levels of completion. The percentage of 15- to 19-year-olds not in education or training is relatively low in countries that have such arrangements.“
Univ.-Prof. Dr. Stephen Lamb, Pathways to School Completion: An International Comparison. In: Lamb u.a., School Dropout and Completion (2011), S. 60.