A higher ethnic diversity of schools has a considerably negative effect on the language skills of students with an immigrant background …

„A higher ethnic diversity of schools has a considerably negative effect on the language skills of students with an immigrant background, regardless of the degree of stratification of the educational system in the countries of destination.“

Univ.-Prof. Dr. Jaap Dronkers u.a., „Positive but also Negative Effects of Ethnic Diversity in Schools on Educational Performance?“ in Windzio (Hrsg.), „Integration and Inequality in Educational Intitutions“ (2013), S. 90