Since the earliest studies on multilingual advantages, it has proved difficult to disentangle language development from general cognition. It remains unclear whether language interdependence is an independent variable or whether observable effects are mediated by cognitive ability. Measurable effects of one language on another typically go hand in…

This article provides three major contributions to the literature: we provide granular information on the development of student argumentative writing across secondary school; we replicate the MacArthur et al. model of Natural Language Processing (NLP) writing features that predict quality with a younger group of students; and we are able to…

We address the notion that different student grouping configurations in the classroom may provide different sets of opportunities for English learners (ELs) -- students whose home language is not English (the language of instruction in the U.S.) -- to both learn science and develop a second language through different forms of social interaction.…