Adults learning a new language tend to judge unconventional utterances more leniently than fluent speakers do; ratings on acceptable utterances, however, tend to align more closely with fluent speakers. This asymmetry raises a question as to whether unconventional utterances can be statistically preempted by conventional utterances for adult…

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…

It remains an open question whether second language (L2) learners can process linguistic properties at the syntax-discourse interface. This study examines this issue in the context of the L2 processing of Korean dative sentences under different information structure requirements. Given that discourse constraints associated with information…

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.…

The current study examined Thai EFL Mattayom learners' pragmatic discourse of givenness via A-movement constructions. While previous studies focused on Thai undergraduate students and their error production in passive voice, this study innovatively contributes to the field by selecting a different group of participants. The participants in this…

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…

This study sought to investigate the key determining characteristics in the writing performance of first-year Chulalongkorn University students across language proficiency levels as measured by CU-TEP. The focus was on both syntactic and lexical complexity components. The sample comprised the writings from a corpus of 4,812 first-year students…

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…

We discuss the causative-inchoative alternation in Turkish Sign Language (Türk Isaret Dili -- TID), and the age of acquisition effects on multi-predicate, complex constructions that are observed in both causative and inchoative events. We present a picture-description task performed by 24 adult signers, half of which were exposed to TID from birth…

Graded reading is one of the important ways of English learning. How to automatically judge and grade the difficulty of the English reading corpus is of great significance for precision teaching and personalized learning. However, the current rule-based readability assessment methods have some limitations, such as low efficiency and poor accuracy.…

Challenges in reading Chinese as a foreign language involve the large proportion of two-character compound words which have complex intra-word morphological structures and scriptal distance between learner's native language (L1) and Chinese as a second or foreign language. This study extended a previous investigation on the processing of Chinese…

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…