Since the earliest studies on multilingual advantages, it has proved difficult to disentangle language development from general cognition. It remains unclear whether language interdependence is an independent variable or whether observable effects are mediated by cognitive ability. Measurable effects of one language on another typically go hand in…

The relationship between language switching and task switching has been well studied in bilingualism literature. This study employs novel experiments involving magnitude-parity switching and transparency-orientation switching and compares the costs associated with these two types of task switching with language switching. Switching costs and the…

This study delves into the predictors of English proficiency among middle school students in China, utilizing the rich dataset provided by the China Education Panel Survey (CEPS). By integrating multilevel modeling and Support Vector Regression (SVR), this research scrutinizes a broad spectrum of factors at the individual, family, class, and…

This study explored the impacts of translingual practices on English as an additional language (EAL) writing education in a non-English as a medium of instruction (non-EMI) context at a Chinese university. The findings highlighted the benefits of translingual practices in enhancing students' comprehension, easing cognitive challenges, and…

In most universities in South Africa, English is still preferred as the medium of instruction. However, most schools in South Africa have adopted a home-language education approach. Those school students then have a lower English proficiency compared to other students from English schools. Providing these students with instructional assistance…

This mixed-methods study investigated the impact of musical lyrics and working memory capacities on second language (L2) English reading comprehension among adult Chinese native speakers. Participants were 57 adult ESL learners with advanced L2 proficiency, divided into high and low working memory capacity groups based on a pre-test. They…

This longitudinal study with time-serial data examines for the first time whether different types of intraindividual variation in second language (L2) performance and cognitive functioning are related, and how and when they influence L2 development longitudinally in older adulthood. We analyzed the L2 development of 26 German-speaking adults aged…

We evaluated external and internal sources of variation in second language (L2) and native language (L1) proficiency among college students. One hundred and twelve native-English L2 learners completed measures of L1 and L2 speaking proficiency, working memory, and cognitive control and provided self-ratings of language exposure and use. When…

In linguistically diverse contexts, language repertoires include various literacy skills in multiple languages across different modes of representation (multiliteracies), where multilingual writing can be conceptualized as a synthesized competence that includes all languages in a person's repertoire and is continuously evolving. We respond to the…

Given the controversies surrounding the critical period hypothesis on second-language (L2) learning outcomes, this study focuses on the phonological aspect of language acquisition--the strength of the foreign accent in L2. Drawing on data from a large-scale representative data set on immigrant adolescents in Germany--CILS4EU-DE--we first…

This paper examined to what extent causal explanation speaking tasks (CESTs) are cognitively appropriate for assessing young language learners' (YLLs) L2 speaking. Ninety-six YLLs (48 from Grade 4 and 6 each) in China performed two CESTs in both L1 (Chinese) and L2 (English). They also completed receptive and productive L2 vocabulary size tests.…

This study was an attempt to investigate Iranian EFL learners' private speech across proficiency levels and gender while doing reading comprehension tasks. Moreover, it was an attempt to examine the different forms of private speech produced by Iranian English learners. Six forms of private speech were coded and analyzed: affective markers,…

We investigated age-related decline in adult learning of Dutch as an additional language (Ln) in speaking, writing, listening, and reading proficiency test scores for 56,024 adult immigrants with 50 L1s who came to the Netherlands for study or work. Performance for all four language skills turned out to decline monotonically after an age of…

Studies have shown that U.S. learners' proficiency in reading and listening comprehension lags behind their ability to decode words. Recent studies have found that even after 3 years of high school L2 courses, U.S. students fail to develop minimal proficiency in reading comprehension. This paper suggests that while cognitive factors (word decoding…

This study investigated the effects of captions on the listening comprehension of vlogs. A total of 96 EFL learners watched three vlogs under one of three conditions: L2 captions, L1 captions, and no captions. Each group included low-, mid-, and high-level proficiency learners. The vlogs differed in the pictorial support of the audio, with Vlog 1…