While it is known that heritage speakers diverge from the homeland baseline, there is still no consensus on the mechanisms triggering this divergence. We investigate the impact of two potential factors shaping adult heritage language (HL) grammars: (1) cross-linguistic influence (CLI), originally proposed for second language acquisition (SLA), and…

This study uses both offline and online tasks in order to investigate whether second language learners of English from an article-less first-language (Mandarin) are able to integrate the indefinite article into their grammar despite the lack of articles in their first language. This article reports on two studies, one on learners' sensitivity to…

This study investigates the role of previously acquired linguistic systems, Mazandarani and Persian, in the acquisition of third language (L3) English at the initial stages. The data have been obtained from 31 students (age 13-14 years), testing the placement of attributive possessives in a grammaticality judgment task, an element rearrangement…

This article identifies empirical evidence (Dao, 2007; in preparation) conflicting with Processability Theory's (PT) prediction that in acquisition of English as a second language (ESL), plural-marking emerges first in bare nouns and only later in numeric expressions. Specifically, it presents results from Dao's (2007) cross-sectional study of ESL…