The review of research presented here examines studies based on Benjamin Whorf's hypothesis of linguistic relativity, which states that cultural traditions encourage certain types of thinking and are reinforced by structural characteristics of particular languages. Studies were selected for inclusion if: (1) the subjects were learners and speakers…

From a consideration of variability in language-learner and language-user data, the concept of proficiency is considered in relation to models of second and foreign language learning. Proficiency is defined in relation to four separate dimensions: grammatical well-formedness, speech-act rules, functional elaboration, and code diversity. This…

The study of native language influence in Second Language Acquisition has undergone significant changes over the past few decades. This book, which includes 12 chapters by distinguished researchers in the field of second language acquisition, traces the conceptual history of language transfer from its early role within a Contrastive Analysis…