badly or badly can explain 27-33% of the achievement gap between native and immigrant children in standardized language …Immigrant children in the US tend to perform worse in reading, mathematics, and science compared to native children … identify the causal effect of English proficiency on cognitive test scores, I use the fact that language proficiency is closely …

We provide new evidence about language assimilation and its effect on test scores using data from two rounds (conducted …-born children of immigrants were asked to take Woodcock-Johnson achievement test. In both rounds, prior to the administration of … tests, children of Hispanic origin were randomly assigned to take the tests either in Spanish or in English. Therefore, we …

creates negative peer effects on their children. In North Carolina there has been a significant increase in immigrants … especially those with limited English language skills and recent data suggest that North Carolina has the 8th largest ELL student …. Rather, it is the limited English language skills of some of these students that leads to small, negative peer effects on …

creates negative peer effects on their children. In North Carolina, there has been a significant increase in immigrants …, especially those with limited English language skills. Recent data suggests that North Carolina has the eighth largest English-language … peer effects on native students’ achievement. Rather, it is the limited English language skills of some of these students …