Foreign language learning is a challenging task, involving mastering a new sound system, phonological and syntactical forms, vocabulary, and sometimes a new writing system. For the adult second language learner, one of the most frustrating aspects is having an inadequate vocabulary for expressing complex ideas that are so easy to relate in one's…

Two hypotheses proposed to explain the variance in second language tests are investigated. Hypothesis 1 (H1) claims that language skill is separable into components either related to linguistically defined categories (e.g., listening, speaking, reading, and writing). Another possibility (H2) is that second language ability may be a more unitary…