This article presents a theoretical review of and methodological guidelines for the study of two key notions in second language acquisition research, complexity and difficulty. The term "complexity" has gained considerable currency over the past decades and has taken on a wide range of meanings. We argue for a more restricted…

Second-language (L2) knowledge of English is an essential communication tool in the contemporary era of globalization in many research and business fields. Among the important tasks in English education is the measurement of student proficiency. While various tests purport to measure proficiency in learning English, repeated preparation and…

This study provides an overview of the level of students' cognitive load in learning English in vocational schools. A quantitative descriptive study uses a cross-sectional survey conducted to measure the level of cognitive load of students in learning English in vocational schools. The subjects are 69 respondents who are students from one of the…

This study proposes a classification method for multiple text reading test formats in English language proficiency tests. A preliminary study involving 11 proficiency tests revealed two tests that fit the scope of the main study. Results show that multiple text reading test formats use complementary texts rather than conflicting texts. As for…

This study is aimed to identify the effects of task complexity on first language (L1) use and the functions it may serve when two groups of learners of English as a foreign language (EFL) work on collaborative tasks. Twenty-four pairs of Chinese EFL learners from two universities were assigned to a lower-proficiency and a higher-proficiency group,…

This study investigates how academic disciplines impact second language (L2) lexical competencies. Prior L2 research has often overlooked the broader effects of disciplinary backgrounds on lexical development. To address this gap, this study utilized lexical decision, memory, and semantic fluency tasks to examine lexicon recognition, memory, and…

This study investigates the impact of perezhivanie, a concept encompassing emotional experiences and their personal significance on English-speaking proficiency and speaking anxiety among Chinese learners of English as a Foreign Language (EFL). The study focuses on the emotional and cognitive dimensions of perezhivanie to understand its dual role…

The objectives of the current research are to identify and quantify the cognitive strategies non-English students use when working on assignments or solving problems of the English language they are learning and seek to find out non-English students' motivation and background knowledge of English as sustaining factors related to the use of…

Although most children learn to communicate in their first language (L1), there is normal and expected variation in their rate of acquisition across all components of the language system. Until recently, most second language acquisition and second language (L2) researchers have assumed that individual differences (IDs) in L1 acquisition are small…

English language learners (ELLs) lack academic vocabulary knowledge, an essential component that explains much of the persistent achievement gap between students who start schools as ELLs and their monolingual peers. This single-subject experimental design study addressed this issue by focusing on self-regulated vocabulary learning that helps ELLs…

The paper is situated within the theoretical and methodological framework of the the Joint Action Theory of Didactics (Sensevy, Le Sens du Savoir. Eléments pour une Théorie de l'Action Conjointe en Didactique, De Boeck, 2011; Santini et al., Science & Education 27:921-961, 2018) and within the practice turn line of research on epistemic…

This literature review explores the impact of music on tonal language learning, with a focus on Mandarin Chinese. Utilising searches across major databases such as ERIC (EBSCO), ProQuest Central, Google Scholar, and Web of Science from 2005 to 2024, we selected relevant peer-reviewed English-language articles examining music's role in aiding tone…

It is widely believed that raters' cognition is an important aspect of writing assessment, as it has both logical and temporal priority over scores. Based on a critical review of previous research in this area, it is found that raters' cognition can be boiled to two fundamental issues: building text images and strategies for articulating scores.…

Designed to gauge the actions, skills, and strategies that students use to identify, extract, and synthesize information from multiple source materials, integrated writing tasks are particularly challenging for ESL writers. Previous research tended to focus on a limited number of integrated tasks, mostly summaries of one or two sources, thus…

Embedded in a Systemic Functional understanding of education as an initiation into knowledge structures and specific activities, both of which are fundamentally mediated by language, this paper addresses one of the critical concerns around CLIL: a possible mismatch between students' cognitive level and their L2 proficiency. The focus is on acts of…