Previous studies on second language (L2) phonetic acquisition in early bilingual learners have mainly examined immigrants to the L2 country; however, with recent growing dual-language immersion programs, the immersed bilingual group emerged and required more attention in the research. This study aims to investigate vowel patterns of young…

Multiple domains develop simultaneously and interact throughout infancy and early childhood. Although relationships between motor and language skills have been examined cross-sectionally during the first three years of life, little is known regarding the individual factors that influence the development of these domains as well as the relationship…

Previous research by Williams, Siegel and Mazefsky (2018) investigated the relationship between verbal abilities and problem behaviors using data from the Autism Inpatient Collection (AIC). This research found a weak and inconsistent association between verbal abilities and problem behavior severity; however, adapting/coping scores were…

This qualitative dominant mixed-methods study explored reading motivation among high school English learners whose first language was Spanish. Latina/o English learners (N = 87) from four southeastern, suburban high schools took part. The study utilized survey data to test for significant differences across demographic sectors and to group…

This dissertation aims to understand the maturational and non-maturational aspects of early bilingualism and language attrition in heritage speakers who have acquired their L1 incompletely in childhood. The study highlights the influential role of age and input dynamics in early L1 development, where the timing of reduction in L1 input and the…

Spanish is being lost at an alarming rate in the United States, for most immigrant families within two to three generations of arrival. Previous research indicates that the third generation of Hispanic immigrants typically becomes English monolingual (Veltman 2000; Appel & Muysken 1987; Fishman 1978). This investigation examines the role…

How well students perform on standardized tests can affect their educational paths and the rest of their lives. In addition, students' performances on state assessments will affect their schools due to the No Child Left Behind Act. For English language learners (ELLs), the success on tests may be diminished due to their inability to completely…

The purpose of this study was to determine the relationship between school readiness skills as measured by the Missouri KIDS and academic potential in reading and math as measured by the scores on the CTP4 in grades 2-4 in a private, independent school. This study identified which school readiness skills most accurately predict the need for…

Accurate prediction of early childhood reading performance could help identify at-risk students, aid in the development of evidence-based intervention strategies, and further our theoretical understanding of reading development. This study assessed the validity of the Developmental Indicator for the Assessment of Learning (DIAL) language-based…

Autism now occurs in 1 out of 150 births in the United States (Centers for Disease Control, 2008). Increasing numbers and complexity of the disorder make the need for identifying effective interventions critical. DSM-IVTR identifies core characteristics of autism as significant deficits in communication, social interaction, and symbolic play.…

Language shift is the process by which a speech community in a contact situation (i.e. consisting of bilingual speakers) gradually stops using one of its two languages in favor of the other. The causal factors of language shift are generally considered to be social, and researchers have focused on speakers' attitudes (both explicit and unstated)…