„Researchers found that increased student attention in class and the attention paid by teachers to students as a result of the smaller class sizes contributed to increased student achievement. Specifically, teachers in the smaller classes spent more time teaching, were able to address individual student differences, had more interactions with each individual student and were able to minimise class disruptions compared with classes of ’normal‘ size.“
Univ.-Prof. Dr. Kevin Watson u. a., „Globalising the Class Size Debate: Myths and Realities“. In: „Journal of International and Comparative Education“, 2013, Vol. 2, S. 75