In the past decades, there has been a surge in interest in the study of language complexity in second language (L2) research. In this article we provide an overview of current theoretical and methodological practices in L2 complexity research, while simultaneously framing these within the broader scientific interest into the notion of complexity.…

Instructed second language acquisition (ISLA) research has recently attracted more focal attention due to the publications of three books and as the theme of the 2016 Second Language Research Forum (SLRF) conference that celebrated its 35th anniversary in the field of second language acquisition (SLA). Recent definitions (e.g. Loewen, 2015) have…

Language proficiency is multi-componential in nature and, according to many SLA researchers and L2 practitioners, is best captured by the concepts of complexity, accuracy, and fluency (CAF). Two of the three studies reported in this paper adopted the Cognition Hypothesis (Robinson, 2003) as the means to address the question of whether increasing…

In this paper, the role and nature of language and language development will be discussed. Research and theory in second language acquisition has demonstrated that (i) language is an abstract, implicit and complex system. Input (ii) plays a key role in language development; despite the fact that some knowledge of language is innate (iii). Overall,…

This article has two main goals. The first is to summarize and comment on the current state of affairs of generative approaches to SLA (GenSLA), 35 years into its history. This discussion brings the readership of SSLA up to date on the questions driving GenSLA agendas and clears up misconceptions about what GenSLA does and does not endeavor to…

This paper sets out to peruse the role of various theories or more precisely, hypotheses invoked in second language acquisition (SLA) research by surveying three empirical studies pertaining to the critical period hypothesis in the SLA of phonetics and phonology. In particular, the three studies reviewed are titled in chronological order as (1)…

The practice of securing informed consent from research participants has a relatively low profile in second language (L2) acquisition research, despite its prominence in the biomedical and social sciences. This review article analyses the role that informed consent now typically plays in L2 research; discusses an example of an L2 study where…

This special issue contains reports of research on a variety of variables that are hypothesized to have an impact on how practice affects language learning. This includes spacing of practice opportunities, the provision of feedback, training working memory, and oral versus written input. Each study is complex and clearly contextualized within the…

The declarative/procedural (DP) model posits that the learning, storage, and use of language critically depend on two learning and memory systems in the brain: declarative memory and procedural memory. Thus, on the basis of independent research on the memory systems, the model can generate specific and often novel predictions for language. Till…

Considerable reason exists to view the mind, and language within it, as modular, and this view has an important place in research and theory in second language acquisition (SLA) and beyond. But it has had very little impact on the study of working memory and its role in SLA. This article considers the need for modular study of working memory,…

By tradition, L2 motivation research has a monolingual bias--the motivational systems of a learner's different languages conceptualized as separate entities rather than as cognitively interconnected. At a time when multilingualism has become a new world order (Douglas Fir Group, 2016) and where there is evidence of powerful identity experiences…

This paper reports on the reanalysis of Suzuki's (2017) experiment and investigated the extent to which learning schedules influence automatization of second language (L2) morphology. Sixty participants were separated into two groups, which studied morphological rules for oral production under short-spacing (3.3-day intervals) and long-spacing…

There is no doubt that attention and (un)awareness in second/foreign language (L2 learning) are two constructs that have permeated, explicitly or implicitly, second language acquisition (SLA) studies since their inception. Indeed, we have witnessed several empirical studies attempting to probe more deeply into the roles of these two constructs in…

This article focuses on the use of collocations in language learning research (LLR). Collocations, as units of formulaic language, are becoming prominent in our understanding of language learning and use; however, while the number of corpus-based LLR studies of collocations is growing, there is still a need for a deeper understanding of factors…

Instructed second language acquisition (ISLA) has been referenced in the larger field of the SLA literature for over two and a half decades. Currently, there are several theoretical underpinnings accounting for processes assumed to play a role in ISLA and quite an impressive number of studies have empirically addressed some aspect(s) of ISLA.…