This article reports on an investigation into the bilingual development of literacy skills in Portuguese heritage language speakers in Switzerland in which we sought to put Cummins' linguistic interdependence hypothesis to the test. Three predictions were derived from this hypothesis: (1) Literacy skill levels in one of the bilinguals' languages…

The disproportionate representation of English Language Learners (ELL) to special education is widely attributed to the difficulty in identifying a disability through a language in development. This language acquisition or language disorder question has manifested in paradoxical disproportionality patterns for the ELL population. Some…