This study examined the relationship between complexity, accuracy and fluency (CAF), using longitudinal data. Conducted from the perspective of complex dynamic systems theory (CDST), this research adopted four CAF general measures to track the development of five Chinese undergraduates' English speech over a 15-week period. LOWESS graphs supported…

Engagement and willingness to communicate (WTC) are crucial elements for second language (L2) learning. However, little is written about whether L2 learners demonstrate heterogeneous patterns of engagement and WTC in the classroom. This study aims to identify intraindividual differences in these two constructs and examine the roles of eight…

In this paper, we report a longitudinal study of the effects of procedural task repetition on learners' task performance (i.e., syntactic complexity in relation to lexical complexity). We investigated how task repetition results in differences at the group and individual level across each task interval (T = 7). Intermediate-level Saudi learners of…

This study examines how listening comprehension difficulties (LCDs) vary among college-level learners of English as a Foreign Language (EFL), with a focus on the roles of gender and language proficiency. Listening comprehension is an essential component of language learning, presenting notable challenges for EFL students. These challenges are…

The burgeoning field of third language (L3) acquisition has increasingly focused on intermediate stages of language development, aiming to establish the groundwork for comprehensive models of L3 learning that encompass the entire developmental sequence. This article underscores the importance of a robust epistemological foundation, advocating for…

This study examines context effects on lexical processing by low-proficiency Japanese learners of English during sentence comprehension, and the role of individual differences in verbal working memory (WM). Thirty Japanese learners of English as a second language (L2) and 27 speakers of English as a first language (L1) were recruited for a…

As emotional factors gain increasing prominence in second language acquisition (SLA), few studies have offered a comprehensive bibliometric synthesis of this evolving research area. To address this gap, the present study analyzed 931 articles indexed in the Social Sciences Citation Index (SSCI) from 2000 to 2024. A combination of bibliometric…

Psychological variables remain a much under-investigated sub-category of individual differences (IDs) compared with cognitive ones. The present paper aims to gain a better understanding of the psychological effects of bilingualism by investigating national identity (NI), a socio-psychological construct, based on big data, that has rarely been…

This cross-sectional study addresses for the first time the non/linear association between individual learner differences of social, proficiency-related, and socioaffective nature (length of residence [LoR], varietal proficiency, exposure, and socioaffect) and differential outcomes in L2 sociolinguistic repertoires against the backdrop of the…

The notion that digital games can be effectively employed as tools for learning and teaching has steadily been gaining traction among educational theorists and researchers, with numerous empirical studies pointing to the potential benefits of games for skill and knowledge development. However, a solid understanding of learners' attitudes and…

This article reports a qualitative case study on the translanguaging practices of Vietnamese English-as-a-foreign-language (EFL) educators and explores the mechanisms behind individual differences in their practices through an integrative cultural-historical activity theory perspective. Data were collected through semi-structured interviews,…

While multimodal glossing is supported by theories like Mayer's Cognitive Theory of Multimedia Learning, its effectiveness remains debated due to potential cognitive demands. This study examined how repeated exposures, working memory (WM), and gloss lookup behaviors influence vocabulary retention. Ninety-six Chinese high school students were…

While English medium instruction (EMI) programs proliferate around the globe, research on students' motivation and engagement (ME) in EMI remains underrepresented. Informed by a multidimensional conceptualization of ME as interconnected, this study employed an adapted Motivation and Engagement Scale to examine university students' ME in EMI…

The undeniable importance of reading in higher education prompted this investigation into the reading skills of a group often overlooked in previous research: master's level students studying in English-medium instruction (EMI) environments. Participants (148 master's-level students of engineering) completed the Nelson-Denny Reading Test (Form G),…

This study modified the dualistic model of passion, adding composite passion and general passion. The study aimed to determine the levels of passion for learning English of English majors, affirm whether passion for learning English changes over the course of time, and investigate to what extent passion for learning English can predict English…