Evidence from usage-based studies of second language (L2) acquisition reveals that a main source of L2 learners' developing grammars is the L2 input to which learners are regularly exposed. What learners develop from their extended engagement in the sequences of actions comprising the input is not an acontextual system of grammatical units but…

College-level deaf and hard-of-hearing (DHH) students and hearing students of English as a Second Language (L2) along with hearing native speakers (NS) of English were assessed in their knowledge of English resultative and depictive sentences. In "Kevin wiped the table clean," the resultative phrase "clean" indicates that the…

This dissertation examines the acquisitional process of middle se constructions by English- and Korean-speaking L2 learners of Spanish. Although clitic se is well known for its multifunctionality, there is a general tendency in the literature to analyze any use of "se" as a reflexive marker. This tendency is especially prominent in the…

This study investigates the extent to which paper-based data-driven learning (DDL) activities can improve Thai EFL students' grammar learning of conditional sentences (the second condition), as well as the participants' attitudes toward learning through the DDL approach. This was a two-week research using a one-group pre-test and post-test design.…

This study examined number marking comprehension among Japanese learners of second language (L2) English, whose first language (L1) does not have an obligatory number marking system. The study conducted an online sentence comprehension experiment with 96 L1-Japanese learners and 32 native speakers of English, wherein participants engaged in a…

Languages differ regarding the depth, structure, and syntactic domains of recursive structures. Even within a single language, some structures allow infinite self-embedding while others are more restricted. For example, when expressing ownership relation, English allows infinite embedding of the prenominal genitive "-s," whereas the…

The present dissertation reports two experiments that examine implicit and explicit language learning methods and their impacts on early vocabulary, grammar, and phonological acquisition, in addition to working memory, proactive/reactive control, and fluid intelligence, as well as learner motivation. Experiment 1 investigated adult L2 acquisition…

Natural languages contain systematic relationships between verb meaning and verb argument structure. Artificial language learning studies typically remove those relationships and instead pair verb meanings randomly with structures. Adult participants in such studies can detect statistical regularities associated with words in these languages and…

The Topic Hypothesis posits that Chinese language learners progress through a developmental sequence comprising five stages (Gao, 2009; Wang, 2011), which includes the Object-Subject-Verb (OSV) structure at stage 4 and the ba-construct at stage 5. According to this hypothesis, learners typically master the OSV structure before acquiring the…

This study examines the knowledge representation of Japanese university students assessed using grammaticality judgement tests (GJTs) and a metalinguistic knowledge test (MKT). The study also investigates the role of automatised and non-automatised explicit knowledge in general L2 language proficiency. Participants were 87 late learners of English…

This study examines the learning patterns of intermediate and advanced Korean learners in the acquisition of causative expressions according to their proficiency and the causative sentence type. We measured their grammatical knowledge using three types of grammaticality judgment tasks (GJTs) and self-paced reading tasks (SPRTs) differing in time…

This systematic review synthesizes the literature (involving 62 empirical studies) regarding the effectiveness of cognitive linguistics-inspired language pedagogies (CL-ILPs) on second language (L2) learning. It begins with an overview of the main theoretical tenets of cognitive linguistics followed by a description of the data selection, coding,…

Artificial intelligence revolution becomes a trend in most aspects of life. ChatGPT, an AI chatbot, has impacted various domains, including education and language learning. Enhancing writing abilities of ESL learners requires frequent writing practice and feedback, which ChatGPT can easily provide. However, ChatGPT's accuracy in identifying and…

Quantifier-Negation sentences allow an inverse scope reading in Tibetan but not in Chinese. This difference can be attributed to the underlying syntactic difference: the negation word can be raised at Logical Form in Tibetan but not in Chinese. This study investigated whether Chinese-dominant Tibetan heritage speakers know such difference. We…

Students are required to master effective sentences to support their writing skills. However, students often struggle with comprehending and constructing effective sentences due to their limited proficiency and competence. This research examines the comprehension of effective sentences through grammaticality judgment tests and its implications for…