„In order to achieve excellence, it is not enough to simply ‚keep order‘; the school administration and teachers as well as the students and their parents must press for academic success. A school with a positive atmosphere supportive of high achievement and a rigorous academic program can even overcome socioeconomic disadvantages.“
IEA (Hrsg.), „TIMSS and PIRLS 2011: Relationships among reading, mathematics, and science achievement at the fourth grade“ (2013), S. 113f