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…

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…

In second language (L2) research, the lexical unit is often defined as a base word plus inflectional and derivational forms through Level 6 of Bauer and Nation's framework (WF6). WF6 use has been justified by the assumption that once a form is known, recognition of other WF6 members requires little extra effort. A more lenient view holds that an…

This study compares the effects of distributed versus massed corrective feedback (CF) on Spanish differential object marking (DOM). Forty-eight Spanish learners completed three communicative tasks with a researcher on three consecutive days, one task per day. Partial recasts were used to reformulate DOM errors. The distributed group (n = 16)…

This study investigated the influence of teachers' experience with research-related activities on their current grammar teaching practice and research engagement for second language (L2) grammar instruction. Survey responses were collected from 701 Korean L2 English teachers and were analyzed with exploratory factor analyses and logistic…

This article examines how second language (L2) interactional competence is manifested in students' use of "and"-prefaced turns when doing meaning-focused oral tasks in pairs and small groups. Drawing on video recordings from English-as-a-foreign-language upper-secondary classes recorded in Czechia and Finland, 86 sequences involving…

This study examined how mode of input affects the learning of pronunciation and form-meaning connection of second language (L2) words. Seventy-five Japanese learners of English were randomly assigned to 1 of 3 conditions (reading while listening, reading only, listening only), studied 40 low-frequency words while viewing their corresponding…

This study investigated to what extent and how novice second-language (L2) Spanish learners use the cognitive linguistics-informed concept of boundedness to support their development of aspect--namely, the Spanish preterite and imperfect. The concept was presented within the framework of concept-based instruction (CBI) as part of a regular,…

Focus on form (FonF) studies have predominantly addressed its effectiveness in improving learners' syntactic, lexical, orthographic, and phonological knowledge. Extending the scope of this line of research to formulaic FonF practices, this study investigates the relative effectiveness of incidental FonF targeting formulaic versus nonformulaic…

This study draws on multimodal conversation analysis to emically account for moments in second language (L2) English interaction in which speakers appear to be visualizing text as they talk. One way they do this is by slotting out elements of a turn-in-progress in the air, shifting their hand in a slotting gesture from left to right as they say…

The data-rich articles in this special issue invite readers to consider how grammar and multimodality enact social practices. In particular, they propose a reconceptualization of grammar, moving beyond an autonomous system of items and combinatorial rules to demonstrate how grammar is an embodied resource for social interaction. In this…

Evidence from usage-based studies of second language (L2) acquisition reveals that a main source of L2 learners' developing grammars is the L2 input to which learners are regularly exposed. What learners develop from their extended engagement in the sequences of actions comprising the input is not an acontextual system of grammatical units but…

Drawing on usage-based approaches to the study of language learning--including recent research on mobility in interaction, embodied approaches to cognition and communicative action, and innovations in place-based language learning in the wild--this article uses methods from ethnomethodological conversation analysis to investigate video recordings…

The articles in this special issue contribute to understanding the interactional grounding of language learning by scrutinizing how patterns of language use emerge and get routinized as dynamic resources for accomplishing actions in co-constructed interaction. Their findings problematize how grammar is represented in second language (L2) teaching…

Abstract In this article, we bring together conversation analysis and usage-based linguistics to investigate the second language (L2) developmental trajectory of a linguistic construction within the complex multimodal ecology of naturally occurring social interaction. We document how, over the course of 15 months, an L2 speaker's use of the French…