It has been some 35 years since the publication of the article "Continua of Biliteracy" by Hornberger (1989). In this time much has changed in language education in terms of concepts, theories and practices, partly due to the different educational needs in different parts of the world, and partly due to the influence of ideas that have…

Causal inference is a fundamental goal of many research endeavors, including scholarship in the field of language education and learning. Randomized controlled trials are considered an ideal design to test causal claims, but not all claims can be subjected to experimental treatment due to ethical and practical constraints. In this article, we…

The present study assesses linguistic and geographic diversity in selected outlets of SLA and multilingualism research. Specifically, we examine over 2,000 articles published in specialized top-tier journals, recording the languages under study and their acquisition order, author affiliations, the country in which the research was conducted, and…

A lot of attention has been devoted in the last 30 years to understanding nativeness and what has traditionally been called non-nativeness. While many studies have attempted to problematize the dichotomic division between so-called native speakers and non-native speakers, several others have specifically focussed on the language teaching…

This paper reports a bibliometric analysis of two small data sets: a set of 34 papers that make up "The Routledge handbook of vocabulary studies" (Webb, 2020) and a set of papers dealing with second language (L2) vocabulary research taken from a single journal "Frontiers in Psychology." Bibliometric maps based on author…

A process of abstraction initiates the development of a theory of applied linguistics, beginning with the distinction between technical norm and technical fact. Each applied linguistic intervention has a normative dimension and a factual interface with its users. The second step is to abstract the qualifying technical modality of these artefacts,…

In this chapter, I explore how the study of grammatical gender has been a prime example of the impact that boundary crossing can have on the understanding of a phenomenon by creating nuance through the incorporation and juxtaposition of multiple perspectives. In the first section, I start with a description of grammatical gender and its different…

The initial high expectations of applied linguistic work did not endure. Applied linguistics is divided between adopting either a modernist or a postmodernist approach. Despite their relevant critique of modernism, the relativism promoted by postmodernist perspectives is an inadequate response to the challenges of the field. A non-reductionist…

Identifying changing patterns of stability and variability is crucial when examining second language development (SLD) from a complex dynamic systems theory (CDST) perspective (Larsen-Freeman, 2020). By studying attractor states, or recurrent patterns of stability, light can be shed on the underlying dynamics of a complex dynamic system (van Geert…

Nowadays, research in second language acquisition (SLA) is becoming increasingly interdisciplinary while many technical frontiers and research hotspots have emerged. Many studies focus on interdisciplinary topics, but few in-depth studies have been conducted on interdisciplinarity. This study examined the interdisciplinarity of SLA and the…

Structural equation modeling (SEM), as a flexible and versatile multivariate statistical technique, has been growingly used since its introduction in the 1970s. This article presents a methodological synthesis of the characteristics of the use of SEM in L2 research by examining the reporting practices in light of the current SEM literature to…

Peter MacIntyre's 35-years of research in SLA, psychology of language learning, and communication was systematically reviewed in six sections driven by subjective guidelines developed for the purposes of the present survey. To operationalize the objectives of the sections, an impressionistic methodology was created for analysis, according to which…

This guide aims to make corpus building and corpus analysis feasible and practical for language instructors and/or researchers who may view building a corpus as difficult or believe that linguistic analysis requires advanced programming skills. Many avoid creating custom corpora due to these perceived barriers, instead relying on existing corpora…

Second language development can be viewed as a complex and dynamic process in which learners follow non-linear trajectories and develop their language over a period of time (Larsen-Freeman, 2006). Intrinsic to the view of Complex Dynamic Systems Theory (CDST), a system is composed of hierarchical, interdependent subcomponents (learner, learner…

From a complex dynamic systems (CDST) perspective, language is understood as a dynamic system comprised of subsystems that change and develop over time in response to learner-internal and -external factors (Verspoor et al., 2008). Accordingly, language development is seen as a process responsive to the dynamic interaction between the learner and…