Most second language (L2) learners are aware of the importance of vocabulary, and this awareness usually directs their attention to learning new words. By contrast, learners do not often recognise unfamiliar idioms if all the compositional parts look familiar to them such as "turn the corner" or "carry the day." College-level…

Working memory (WM) as a key component of language aptitude has become a topical issue, with some going so far as to argue that WM can replace language aptitude. Research that specifically investigates the relationship between WM and language aptitude is rather limited. This study explores the determinants of language aptitude, with a focus on WM…