The prevalence of late language emergence (LLE) in young children is high, comprising 10 to 20% of toddlers. Late language emergence refers to children who do not use at least 50 single words and 2-word phrases at the age of two. Current best practices for the under-three population with or at risk of having disabilities include the use of…

This study examined the variations between providing secondary-school teachers with collaborative professional development (PD) and traditional PD. Although the U.S. local and federal governments spend billions of dollars on teacher PDs each year, there is still a debate on the effectiveness of those trainings. Research suggests that the most…

This dissertation investigates the actual versus perceived knowledge of oral language development strategies among early years teachers in international schools. Employing Prestwich's (2012) "Teacher's Knowledge of Oral Language Development" (TKOLD) survey, it assesses teachers' knowledge in critical areas such as promoting extended…

Research suggests teacher professional learning and collaboration are essential to support student achievement. However, our Middle Eastern and North African (MENA) English Language Learners (ELL) have lower academic achievement and our teachers are limited with professional learning inquiry cycle opportunities. Research also suggests vocabulary…

The purpose of this research was to explore the perceptions of non-Arab preschool teachers' experiences in assessing Arabic-English dual language learners (DLLs) in classrooms using a well-established, teacher scored authentic assessment of early childhood holistic development. Moreover, this study explored parents' experiences by discussing these…

Early and explicit vocabulary instruction is one important way teachers can support early readers for later reading comprehension success (Duncan et al., 2007; Marulis & Neuman, 2010; Neuman & Dwyer, 2011; National Institute of Child Health and Human Development (NICHD), 2000); however, some observations indicate that early childhood and…

Leaders in education need to identify ways to better train and support professionals so that they do not leave the field (Garcia & Weiss, 2020). Using behavioral education practices, such as precision teaching and Say All Fast Minute Every Day Shuffled (SAFMEDS), promotes skill development and generative learning (Johnson, 2021). Training…

This dissertation is a program evaluation of the Building Blocks of Comprehension vocabulary program, which was first implemented during the 2019-2020 school year by the English department at the school site. The study aimed to investigate the impact of morphological instruction on student vocabulary acquisition and reading comprehension.…

The fast pace and relative ease at which individuals with typical language acquire and use words belie the complexity and vulnerability of lexical representation development (i.e., word learning) and lexical-semantic processing. Lexical-semantic processing impairments are common in both developmental and acquired communication disorders and, even…

Infants and toddlers experience the world in interaction with others. Likewise, social interactions are important in learning about math--concepts of number ("one," "two," "three"), space ("on top," "upside-down," "round"), and magnitude ("more," "big,"…

Previous studies in second language teaching have called attention to the importance and benefits of including reading, especially graded readers (i.e., books adapted to the proficiency level of the students), in the L2 curriculum (Martinez, 2017; Rodrigo, 2018). On one hand, previous scholars have found the following benefits from graded readers:…

This dissertation develops a cognitive model describing when children learn to group distinct sound segments (allophones) into abstract equivalence classes (phonemes). The allophones an individual acquires are arbitrary and determined by their particular input, yet are intricately involved in language cognition once learned. The proposed…

The diagnostic characteristics of autism spectrum disorder (ASD) includes challenges in social communication skills. Among different components of social communication, language, particularly vocabulary, must be supported early in children's development as language is shown to be associated with academic, social, cognitive, and adaptive skills and…

In northeastern United States vocational and technical high schools, students who participate in career technical education (CTE) demonstrate varying reading levels of informational literacy. CTE educators, in two high schools, were challenged to support students' literacy performance, which is critical for entry in post-secondary institutions or…

This qualitative case study examined the contribution a year-long professional development in the science of reading had on 10 first-grade teachers' knowledge of how reading develops and their instructional practices. Data for this research study was collected through a longitudinal interview process, from pre- and post-knowledge inventory…