In this single-case study with a quasi-experimental design, we set out to examine the role of two input-based features of the language learning app Duolingo on learners' development of implicit and explicit second language (L2) knowledge. We investigated the effect of Duolingo's Stories feature and Podcast feature on two Spanish-L2 learners'…

The goal of this dissertation is to describe and analyze the interaction of pluractionality, a kind of event plurality, and the progressive aspect. Based on original fieldwork, I present novel data showing that, in Balinese, when pluractional VPs combine with progressive aspect, we get some kinds of pluractional interpretations but not others. In…

Whereas scholars have extensively researched the pedagogical potential of 4/3/2 activities (i.e. increasing time pressure in task repetition) for enhancing second language (L2) fluency, its impact on L2 accuracy remains unclear. To help L2 learners improve both fluency and accuracy, the present study examined the effects of adding accuracy…

As there is no vowel length contrast in Chinese, Chinese learners of Thai (CLTs) often have difficulty distinguishing between short and long vowels, especially when the same vowel grapheme in Thai orthography can be pronounced as both a short and a long vowel. This study examined the importance of metalinguistic knowledge (MLK) used by CLTs before…

Very few studies have investigated second language (L2) knowledge of word parts. The present study was set to measure L2 recognition of 35 English prefixes and the factors that might predict scores. The form and meaning sections of Sasao and Webb's Word Part Levels Test were administered to 152 Arabic learners of English as a foreign language…

To date, most classroom-based research into the learning of a third language (L3) in the US has examined patterns of acquisition among various groups of bilinguals. Situated mainly within the context of "Portuguese for Spanish Speakers" (PSS), studies typically group learners based on the sequence / age of onset of their main background…

Studies have shown that raising L2 learners' metaphor awareness contributes to the acquisition of figurative language, which fosters students' development of language skills. However, the instruments measuring metaphor awareness, in the majority of relevant research, did not seem to have undergone proper methodological procedures for checking…

According to the speech learning model [Flege, J. E. (1995). Second language speech learning: Theory, findings, and problems. In W. Strange (Ed.), "Speech perception and linguistic experience: Issues in cross-language research" (pp. 233-277). York Press], learners whose first language (L1) is a tonal language (e.g. Cantonese) can be…

This study is a conceptual replication of Ellis' 'Measuring implicit and explicit knowledge of a second language: A psychometric study', published in "Studies in Second Language Acquisition" (2005), aiming to establish the importance of including belief statements (hypothesized to increase processing demands) in the design of Elicited…

This research explores the relationship between morphological awareness (MA) and linguistic aspects by examining how MA affects postgraduates' academic writing, particularly in English as a second language (L2), dealing with writing challenges and vocabulary issues. This study investigates the relationship between MA and academic writing and the…

The increase in popularity of Generative Artificial Intelligence Chatbots, or GACs, has created a potentially fruitful opportunity to enhance teaching English as a Foreign Language (EFL). This study investigated the possibility of using GACs to give EFL students metalinguistic guidance (MG) in linguistics courses. Language competency gaps, a lack…

Word learning in a second language (L2) is a complex process, which is affected by learner-related (e.g., morphological awareness) and language-related (e.g., word semantic transparency) factors. Morphological awareness is learners' sensitivity to the morphological structure of printed words, and semantic transparency is the degree to which…

This study explored teachers' perceptions of synchronous online peer interaction (SOPI) among young learners (YLs), aged 7 to 15. Thirty-eight teachers of diverse L1 backgrounds and teaching experience completed a survey and attended an in-depth interview that explored multiple aspects of SOPI (e.g. benefits, issues, frequency of use, strategies…

Metacognitive awareness of listening strategies has a supporting role in explaining L2 listening comprehension. Although metacognitive awareness is language-independent, language proficiency may determine whether learners can utilize such a cognitive resource during multiple language development. The current study explores the listening strategy…

Mass adoption of neural machine translation (NMT) tools in the translation workflow has exerted a significant impact on the language services industry over the last decade. There are claims that with the advent of NMT, automated translation has reached human parity for translating news (see, e.g. Popel et al. 2020). Moreover, some machine…