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…

This study advances previous research about the effects of explicit instruction on second language (L2) development by examining learners' use of verbal morphology following different types of explicit information (EI) and comprehension practice. We investigated the extent to which additional EI about the first language (L1) can reduce the effects…

Addressing themes from the Douglas Fir Group's (2016) transdisciplinary framework, this paper bridges boundaries between cognitive and social disciplines by showing how social contextual factors can affect the psycholinguistic development of complexity, accuracy, and fluency (CAF) in learner language. Sociolinguistic and sociocultural frameworks…

A key insight of a transdisciplinary perspective on second language acquisition (SLA) as articulated by the Douglas Fir Group (2016) is its usage-based understanding of language. Evidence on the fundamental role that usage plays in shaping individual language knowledge is no doubt compelling. However, while the force of social interaction in…

This study examined linguistic development among both intermediate and advanced college-level second language (L2) learners during short-term study abroad summer programs in Spain. Participants completed a measure of overall proficiency, as well as assessments of receptive grammatical (morphosyntactic) and lexical (semantic) abilities at the…

The current 2-part study investigated the relative contributions of English language training (ELT) and computerized Cogmed working memory training (WMT) to improvements in English-as-a-foreign language (EFL) proficiency and working memory capacity. In Study 1, Japanese undergraduate EFL learners were randomly allocated to 1 of 3 experimental…

This article reports on an experimental study addressing the second language acquisition of Mandarin temporality. Mandarin Chinese does not mark past, present, or future with dedicated morphemes; the native English of the learners does. It was hypothesized that, in their comprehension, learners would utilize the deictic pattern of expressing…

The aim of the current study is to investigate motion event cognition in second language learners in a higher education context. Based on recent findings that speakers of grammatical aspect languages like English attend less to the endpoint (goal) of events than do speakers of nonaspect languages like Swedish in a nonverbal categorization task…

This study contributes to the literature on second language (L2) learners' revision behavior by describing what, when, and how often L2 learners revise their texts when responding to timed writing tasks on the computer and by examining the effects of task type, L2 proficiency, and keyboarding skills on what and when L2 learners revise. Each of 54…

One of the central considerations in the validity argument for the TOEFL iBT is the relationship between the language on the exam and the language required for university courses. Corpus linguistics has recently been shown to be an effective way to explore this relationship, which can also be considered as an aspect of authenticity. Applying…

While research suggests that study abroad (SA) benefits second language (L2) oral fluency, its benefits for other domains are less clear, especially for shorterterm programs, which are becoming more common. Additionally, studies investigating the relationship between cognitive capacity and benefits of SA report inconsistent patterns. In light of…

This study investigates task-related variation in learner performance in a computer-assisted language learning (CALL) environment. For our study, we collected data from 15 beginner and then intermediate second language (L2) learners of German who worked on 3 distinct activity types over 16 months: free composition, translation, and sentence…

This article reports a comparative study of first language (L1) Chinese and second language (L2) English lessons in Hong Kong secondary schools. Aiming to explore how to take advantage of L1 academic proficiency for the benefit of L2 development, the study asked how Chinese and English lessons compare in terms of the content knowledge covered and…

The Spanish subjunctive has been known to pose difficulties for learners of Spanish whose native language is English (e.g., Collentine, 1997, 2003; Terrell, Baycroft, & Perrone, 1987). Investigating the same feature in heritage learners of Spanish can provide more information about the linguistic development of this growing population. This pilot…