This systematic review aims to explore how task complexity and task sequencing affect the complexity, accuracy, and fluency (CAF) of second language performance. Through an analysis of studies conducted between 2012 and 2021, this review investigates the characteristics of the studies, operationalisation of task complexity, measurements of CAF,…

Text messaging is the most popular form of communication (Lionbridge, 2019; Ceci, 2022), and mobile phone ownership is high, especially among university students (Chen & Denoyelles, 2013). Research on mobile language learning is increasingly found on the forefront of computer-assisted language learning (CALL) (Loewen et al., 2019; Stockwell,…

This study was motivated by Truscott's (1996, 2004) scarcely empirically tested claims that written corrective feedback (WCF) processing hinders fluency in subsequent rewriting owing to learners' purposeful avoidance of making mistakes by composing shorter texts at a higher speed. It examined the writing fluency of the texts produced by eighteen…

In comparative studies focusing on context of learning, the main contexts under investigation have been study abroad (SA), at-home formal instruction (AH), and domestic immersion (IM). With the global status of English and its burgeoning popularity as a medium of instruction in countries where English only holds the status of a lingua franca, a…

Recent studies have shown that languaging contributes to second language skill development. Feedback is often used in combination with languaging as a prompt of verbalization during writing revision, and this combination has shown the effect of increasing the quality of writing. The present study tested whether and how indirect feedback helps…

This study examined the differences in perceptions of the value of feedback for improving English speaking performance between students who received video feedback and those who received written feedback and their preferences for written or video feedback. A total of 43 English as a foreign language students participated in this study to produce a…

In order to better understand the role of working memory in second language (L2) written production, this study contributes to recent research attempting to apply Kellogg's model of working memory in first language (L1) writing to L2 writing research (Ellis & Yuan 2004; Ong & Zhang 2010; Johnson, Mercado & Acevedo 2012). This paper…

Lexical richness makes an important contribution to L2 writing quality. To explore its importance, the study aims to identify and explain how lexical richness manifests in argumentative essays written in the final exam of reading and writing class by thirty-five undergraduates. The lexical richness consists of four interrelated elements: lexical…

The triad dimensions of complexity, accuracy, and fluency (CAF) has been widely used for assessing second language performance and development. Unlike accuracy and fluency, the construct of Chinese syntactic complexity has not been comprehensibly conceptualized or operationalized. Moreover, not tailored to the typological differences such as the…

Following one of the new challenges suggested by the Common European Framework of Reference for Languages, a treatment was developed to enhance pragmatic competence, since this competence is not easy to acquire by non-native speakers. Within this context, we focused on pragmatic awareness in the workplace, an area of expertise in growing demand…

The study reported in this paper investigated the relationship between components of aptitude and the fluency, lexical variety, syntactic complexity, and accuracy of performance in two types of written and spoken narrative tasks. We also addressed the question of how narrative performance varies in tasks of different cognitive complexity in the…

Many teachers of foreign languages struggle with finding alternative ways of exposing their students to the target language. At Kent Gardens Elementary School (KGES) in McLean, Virginia, many students participate in an immersion program from first grade to sixth grade. These students spend half of every school day immersed in French while learning…

The research project reported in this chapter consists of three studies in which syntactic complexity, lexical variation and fluency appear as dependent variables. The independent variables are task complexity and proficiency level, as the three studies investigate the effect of task complexity on the written and oral performance of L2 learners of…

Undoubtedly, different learning contexts offer different opportunities for foreign language practice. This article focuses on context effects, and reports on the findings of the "Study Abroad and Language Acquisition" (SALA) project, which has examined in depth the impact of two learning contexts, SA within the European Community Action…

The present longitudinal case study investigated the development of fluency, complexity and accuracy--and the possible relationships between them--in the written production of L2 French. We assessed fluency and complexity in five intermediate learners by means of conventional indicators for written L2 (cf. Wolfe-Quintero et al. 1998), while…