„The language spoken at home is related to students ́ reading proficiency. Across the OECD, students of immigrant parents speaking the language of instruction at home score on average 36 points higher than those who speak another language.“
OECD (Hrsg.), Skills and Labour Market Integration of Immigrants and their Children in Norway (2022), S. 143.
Anm.: 36 PISA-Punkte entsprechen mehr als einem ganzen Schuljahr.