In this final article in this guest-edited issue on synergies in second language acquisition and teaching (SLA/T), we attempt to bring together the main content of this issue in an overall, combined synergy statement, concluding this project as a whole. Let us remind readers of the project: A shared effort by 17 scholars taking 11 different…

The recent dynamic turn in second language acquisition research has called for an investigation in learner agency by taking its complex dynamic nature into account. Informed by complex dynamic systems theory (CDST), this study investigated the agency of learners in a complex educational context where mainstream schooling and private tutoring…

As part of a larger project investigating language awareness in plurilingual settings across educational levels through a multiple case study, this article zooms in on students' language awareness as it unfolds in a classroom in a Danish upper secondary school, in the context of a compulsory, plurilingual general language awareness course.…

The measurement of second language (L2) productive lexical proficiency has driven a great deal of research over the past two decades. Research has indicated that more proficient speakers and writers tend to use a wider range of words and that more proficient writers tend to use words that are more sophisticated (less frequent in reference…

This article examines the relationship between collective memory and individual second-language (L2) learning motivation as articulated in a qualitative research study with language revitalization practitioners. These practitioners learn and teach their languages and engage in other activities in order to bring Indigenous or ancestral languages…

Developing proficiency and intercultural competence are goals promoted by the Modern Language Association and widely shared by postsecondary second language programs across the United States. Although the development of proficiency has been studied extensively in this context, comparatively little is known about how intercultural competence…

Meta-analytic studies of second language (L2) learning typically employ a classic approach to meta-analysis. Although the classic approach can clarify findings, a multivariate, multilevel meta-analysis (3M) approach increases transparency by accounting for (a) dependencies in the evidence presented by primary studies, (b) methodological…

This study used idiodynamic methodology to investigate the dynamics of second language (L2) learners' foreign language anxiety (FLA) and foreign language enjoyment (FLE), and the details of emotion regulation (ER) directed at managing these emotions, in pair- and group-work speaking tasks performed by 10 advanced English-as-a-foreign-language…

The affective turn in the second language (L2) acquisition literature has witnessed a shift from the periphery to a clear focus on emotions. Nevertheless, this shift tends to examine emotion separately from cognition. Vygotsky's "perezhivanie" provides a theoretical lens to explore the inextricable interconnectedness of emotion and…

Frequency and proficiency have been found to play an important role in second language (L2) phrasal processing. However, existing research has largely focused on English and other European languages, with other commonly used languages, such as Chinese, being largely disregarded. To fill this gap, we carried out two experiments to investigate how…

Although current approaches to second language (L2) pronunciation underscore that instruction should concentrate on pronunciation features that help learners be more intelligible (and not necessarily more native like), there is little empirical evidence as to what those features are, especially in languages other than English. To address this gap,…

We describe a longitudinal (5-year) researcher-supported initiative designed to strengthen the research-practice link (RPL) and serve as an effective form of situated professional learning and development (PLD) in adult second language programs. We facilitated the formation of and supported 9 professional reading groups of 6-12 instructors (N =…

This article examines language classrooms as communicative settings for learners' development of sociolinguistic competence involving target language variation in a study abroad context. Specifically, it investigates how two Spanish teachers in Peru imparted knowledge of the social and contextual appropriateness of local linguistic variants that…

This study investigates a second language (L2) speaker's use and learning of the Icelandic auxiliary verb "aetla" (pronounced /aihtla/) in the wild. This analytic focus is motivated by the L2 speaker's (Anna) own orientation to "aetla" as a learnable. We track Anna's use of "aetla" in naturally occurring social…

This article presents selected results from a large-scale, mixed-methods, federally funded investigation of US-based language study-abroad alumni of all ages, which included a nationwide survey (N = 4,899) followed by professional life history interviews with 54 participants. Here, we focus on three questions heretofore unaddressed: (a) How do…