Aptitude-treatment interaction (ATI) research is of both theoretical and practical interest to second language (L2) learning, since it provides insights into the processes linking learner-internal individual difference factors and learner-external contextual variables including instructional approach--variables that jointly determine L2 outcomes.…

This complex article has six subsections. Following a brief introduction, one team of three co-authors and three single authors present compact statements of their distinctive individual research perspectives on second language acquisition and teaching (SLA/T): Atkinson, Mejía-Laguna, and Ribeiro offer a sociocognitive perspective; Cappellini…

Flow is an intrinsic motivational state associated with full task engagement, positive affect, and enhanced performance. While research has examined how different language tasks interact with flow experiences, no study has examined learner flow experiences in a wide range of tasks using an experience sampling method to determine how universal…

With a forward-looking and problem-solving mindset, this article aims to combine theoretical knowledge and empirical evidence from different schools of thought in the field of second language (L2) learning and teaching--namely, instructed second language acquisition, generative linguistics, and an ecological perspective that includes multiple…

Language learners are often required to negotiate classroom participation in pair and group work; therefore, willingness to communicate (WTC) could be a key determiner of second language (L2) success. Classroom WTC is volatile and influenced by interlocutor-related variables, such as reciprocal identities, group membership and atmosphere, and peer…

There are calls for developing ways to teach language that can inspire and motivate students to study additional languages. While previous research has pointed toward benefits of arts-based activities in language learning, combining language and dance has mainly been studied with younger language learners. Contextualized within the course…

In this meta-analysis, we estimate the effectiveness of hybrid language instruction overall and across a number of moderator variables by aggregating effect sizes from 11 studies with 34 samples. Results suggest hybrid language instruction can be just as effective as traditional face-to-face (f2f) instruction, as indicated by the negligible…

Defined as a combination of perseverance and passion for long-term goals, grit has been hypothesized to be as important as talent in determining the success of students, adding incremental predictive validity for achievement criteria above and beyond natural or inherent ability. In this study, we tested this hypothesis by comparing the effects of…

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…

This article foregrounds the role of the learner's experienced and expressive body in the process of action-oriented intercultural second language acquisition (SLA), drawing on phenomenological and related research on embodiment. It suggests that processes of perception, cognition, intentionality, and action are fundamentally shaped by the…

As emotions research in the field of second language acquisition continues to evolve, it is equally important to explore the impact of social--emotional variables that are specifically relevant to heritage language (HL) contexts. Anchoring on foundations in critical heritage language education (HLE), this study examines the discomforts of the HL…

This article adopts learning-behavior tracking as a research methodology within conversation analysis for second language acquisition to investigate its applicability to track and document how learning opportunities through collaborative repair work are brought about and whether they lead to second language (L2) word learning. To this end, the…

Extramural exposure, through activities such as watching TV, gaming, networking, and online reading, has become an important source of vocabulary acquisition in English as a foreign language, particularly when learners' first language (L1) has many cognates with English. Our study examined extramural vocabulary acquisition of 10th-grade L1…

The purpose of this article is to examine the ethical tensions and considerations that arise in the world language classroom from using pedagogies of discomfort. Although pedagogies of discomfort have mostly been seen through a positive lens in the literature for engaging students with difficult issues in the classroom, there are ethical concerns,…

In order to conceptualize materials used in pair-work activities from a sociomaterialist perspective, this study examined the moment-by-moment unfolding of 67 pair-work interactions in beginner-level Japanese-as-a-foreign-language classrooms. The types of pair-work materials used in the focal classrooms--either textbook or teacher-designed…