The current study examined the extent to which first language (L1) utterance fluency measures can predict second language (L2) fluency and how L2 proficiency moderates the relationship between L1 and L2 fluency. A total of 104 Japanese-speaking learners of English completed different argumentative speech tasks in their L1 and L2. Their speaking…

This study investigated the relative contributions of English morphological and vocabulary knowledge to second language (L2) reading comprehension among 100 adult Japanese English as a foreign language (EFL) learners. The study also investigated the extent to which the roles of morphological and vocabulary knowledge in L2 reading comprehension…

This study assessed the effect of adjectives and noun premodifiers on L2 noun phrase comprehension and error types among English Language Learners. We also examined the correlation between L2 noun phrase comprehension and L2 reading comprehension, as well as the contribution of L2 noun phrase comprehension to L2 reading comprehension. One hundred…

The dissertation presents a pioneering investigation into child speech among Bikolano children. It aims to address the underdescription and underdocumentation of Child Bikol as spoken in the Philippines. Bikol, an Austronesian macrolanguage, often coexists with more dominant languages, making Bikolano children both emergent multilinguals and…

Research has established the link between socioeconomic status (SES) and children's reading development. However, the theoretical mechanisms underlying the association between them have yet to be fully understood. Moreover, few previous studies exploring the mechanisms tapped both first language (L1) and second language (L2) at the same time. In…

Vocabulary research provides valuable information on the construct of word knowledge (WK), and suggests ways to develop language learners' lexicon, arguably, the backbone of communication. The present study explores EFL students' vocabulary learning behavior; more specifically, the aspects of WK components they intentionally focus on when learning…

Research on "parentese," the acoustically exaggerated, slower, and higher-pitched speech directed toward infants, has mostly focused on maternal contributions, although it has long been known that fathers also produce parentese. Given recent societal changes in family dynamics, it is necessary to revise these mother-centered models of…

Purpose: Parent engagement is a critical component of optimizing services for young children with disabilities, including those with language disorders. Without training, however, many parents may lack the knowledge and skills to effectively facilitate their children's language development during the essential early childhood years. The Parents…

This study investigated the optimum task sequence for second language (L2) novice learners of English. One set of task sequences was manipulated using a deductive and theoretical SSARC (simplify-stabilize-automatize-restructure-complexify) model, and two sets of task sequences were manipulated based on a teacher's inductive classroom observations.…

Few studies provide information on the reliability and validity of parental report instruments when assessing the language skills of pre-school-aged children. This study investigates the internal consistency and concurrent validity of the parental report instrument, the Finnish version of the Communicative Development Inventory III (FinCDI III),…

One of the fundamental questions in the field of language acquisition is a learnability problem, which considers how learners acquire certain aspects of language which are not directly provided in the input or whose referents are not readily observable. This dissertation investigates Japanese children's acquisition of various linguistic phenomena,…

This study builds on prior research on second language (L2) Spanish psych verbs, which has centered on morphosyntactic properties, by examining their syntactic distribution, which relies on lexical semantic knowledge. The fact that certain forms are licensed for some verbs, but not others, is the result of an underlying lexical semantic difference…

Background: Although there is a growing body of literature on cognitive and language processing in bilingual children with developmental language disorder (DLD), there is a major gap in the evidence for language intervention. Critically, speech-language therapists are often required to make clinical decisions for language intervention on specific…

The purpose of this study was to compare developmental trajectories of oral language acquisition of children who are deaf and hard of hearing (DHH) and children with typical hearing across the preschool years. Thirty children who are DHH who use amplification and spoken language and 31 children with typical hearing completed an early language and…

Although the literature on computer-assisted language learning has demonstrated that digital tools such as online translators and bilingual dictionaries offer affordances to second language (or foreign language) writers of English to solve linguistic (lexical and syntactic) issues, the extent to which digital technology supports multilingual…