„Denmark […] introduced a mandatory assessment of language development for all 3-year-olds that aims to diagnose possible language problems before children start school. If identified as necessary, additional language training of at least 15 hours per week can take place as an integrated part of normal kindergarten activities or in separate groups. In Germany, the majority of Länder introduced screening processes to identify pre-school children in need of additional language support. These assessments are usually conducted 12 to 24 months before children’s transition to school.“
OECD (Hrsg.), „The Resilience of Students with an Immigrant Background“ (2018), S. 271