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…

To investigate how task complexity cognitive factors influence the lexical complexity in essay writing, this study was guided by Robinson's Cognition Hypothesis (CH) and Skehan's Limited Attentional Capacity Model (LACM), and examined the effects of task complexity on lexical complexity in undergraduates' essay writing. Using Lu's Lexical…

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 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…

The United States government is perennially in need of employees with proficiency in critical foreign languages to communicate with foreign counterparts and maintain relationships worldwide. In order to fulfill this need, the government devotes significant resources training federal employees to advanced levels of language proficiency through…

This report provides an in-depth comparison of TOEFL iBT® and the Duolingo English Test (DET) in terms of the degree to which both tests assess academic language proficiency in listening, reading, writing, and speaking. The analysis is based on publicly available documentation on both tests, including sample test questions available on the test…

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,…

Accomplishing a communication task in the real world requires the ability not only to do the task per se but also to manage aspects of the context in which it occurs. For this reason, simulations of target language use contexts have been incorporated into the design of communicative language tests as a way of enhancing the authenticity of…

Previous research has documented that students' reading comprehension performance in learning English as a foreign language (EFL) differs greatly between mobile-assisted and paper-based reading. The present study extends previous work by investigating whether reading cognitive load differs between mobile-assisted and paper-based EFL reading…

English-medium instruction (EMI) is rising in importance in higher education, especially for fields such as medicine. However, most students have some degree of linguistic barriers when studying courses in EMI. This study explored the challenges medical students face in studying medicine taught in English; whether these challenges differ by…

Task complexity and communication modes are two task design and implementation factors that have been found to affect second language (L2) learners' oral performance. While increasing task complexity and developing tasks according to the features of face-to-face and computer-mediated communication modes can optimise L2 production, few studies…

Many language learners lack the motivation to read complex texts. Because high-immersion Virtual Reality (VR) is increasingly reported to be highly motivating, the goal of our study was to compare English as a Second Language (ESL) learners' (N=79) motivation while reading a story with subtitles in VR (experimental group) versus reading the same…

General chemistry is a mandatory course for those in pursuit of careers in various allied health and science, technology, engineering, and mathematics (STEM) fields. However, many students find chemistry difficult. For English language learners (ELLs), the situation is especially demanding, as these students are required to learn the specialized…

We investigated how learner factors, such as vocabulary proficiency, strategy use, and working memory, are associated with successful corpus-based second language (L2) vocabulary learning, in which learners are encouraged to analyze and explore large, structured collections of authentic language data (i.e., corpora) to resolve their lexical issues…

This paper focuses on the design and evaluation of a theory-based computer-assisted summary writing learning environment called Summary Writing-PAL (SW-PAL). The SW-PAL was developed based on four aspects: summarizing strategies, learning theories, prior knowledge, and cognitive load. A quasi-experiment that involved 58 undergraduates majoring in…