The vocabulary deficit shown by English Learners (ELs) has become evident among many educators over decades of research (Becker, 1977; Biemiller, 2001; Chall, Jacobs, & Baldwin, 1990; Hart & Riseley, 2003), and has shown that a student's limited vocabulary becomes a "major barrier to school success" (Graves, 2005, p. 18).…

It is often assumed that cross-linguistically more prevalent distinctions are easier to learn potentially due to their conceptual naturalness. Prior work supports this hypothesis in phonology, morphology and syntax but has not addressed semantics. This work aims to unravel the potential factors that contribute to the learnability and the…

This study revisited L2 morpheme development order among Korean young learners of English. Taking into account the spirit of the current English curriculum in South Korea, the current study examined L2 morpheme development from two different perspectives: accuracy and fluency aspects. In the field of second language development, many studies have…

Purpose: Children with speech sound disorder (SSD) mispronounce more speech sounds than is typical for their age and a growing body of research suggests that a deficit in speech perception abilities contributes to development of the disorder. However, little work has been done to characterize the neurophysiological processes indexing speech…

This dissertation concerns the acquisition of the interaction between lexicosemantic properties of verbs and syntax, focusing on symmetrical and asymmetrical verbs in different syntactic structures. Based on linguistic evidence, it is shown that two conceptual categories, Mutuality and Number, interact to give rise to four event-types: Single…

Numbers are ubiquitous in life. At the same time, the symbols for numbers are highly abstract and their visual appearance does not carry any direct relation to their magnitude. This poses an important question for researchers interested in how numbers are mentally processed. Whereas research on numeric cognition suggests that culturally based…

This dissertation is about Chinese loanwords. It is mainly divided into two parts. Part I is a general discussion about loanwords in Chinese; Chapter I and II belong to the first part. Part II is a discussion about the analyses of Mandarin loanwords originating from English. Chapter III, IV, and V are all related to the second part. Chapter VI is…

This dissertation investigates second language (L2) development in the domains of morphosyntax and semantics. Specifically, it examines the acquisition of definiteness and specificity in Russian within the Feature Re-assembly framework (Lardiere, 2009), according to which the hardest L2 learning task is not to reset parameters but to reconfigure,…

Taking up analytical issues raised primarily in Dixon (2000) and Dixon & Aikhenvald (2000), this dissertation combines descriptive work with a medium-sized (50-language) typological study. Chapter 1 situates the dissertation against a concise survey of typological-functional work on causative constructions from the last few decades, and…