Despite its critical role for the development of the field, little is known about replication in second language (L2) research. To better understand replication practice, we first provide a narrative review of challenges related to replication, drawing on recent developments in psychology. This discussion frames and motivates a systematic review,…

The range, variety, or diversity of words found in learners' language use is believed to reflect the complexity of their vocabulary knowledge as well as the level of their language proficiency. Many indices of lexical diversity have been proposed, most of which involve statistical relationships between types and tokens, and which ultimately…

Many millenia ago, a number of genetic changes endowed the human species with the remarkable capacity: (1) to construct highly complex systems of expressions--human languages; (2) to copy such systems, once created, from other members of the species; and (3) to use them for communicative and perhaps other purposes. This capacity is not uniform; it…

In the position article to this volume, Klein outlines a set of questions that are relevant for furthering the linguist's understanding of what the cognitive and neural prerequisites for time in language might be. He also declares a certain skepticism regarding the likelihood that new methods from other disciplines will provide answers to those…

Presents a research agenda in which the study of interlanguage becomes more central to the study of interlanguage pragmatics, assessing the state of acquisition research in interlanguage pragmatics, surveying work in interlanguage pragmatics that either directly examines or appeals to grammatical competence, showing how acquisition studies in…

Describes research concerning the facilitation of pronunciation accuracy of sixty-one non-native speakers of English. The sample consisted of Arabic, Japanese, Persian, and Thai speakers. Twenty variables were considered. (Author/POP)

In comparing the mechanism of a native language sound change and the acquisition of a second language phonology, it is concluded that individuals approach the learning and changing of phonology in a psycholinguistically unified way; the foreign language learner is fundamentally like himself as a native language changer. (Author/POP)