The revised Speech Learning Model (SLM-r) postulates that learners with more precisely defined categories in their native language (L1) exhibit greater proficiency in acquiring sounds in a second language (L2). Despite its recent emergence, empirical studies validating this hypothesis remain scarce. This study aims to investigate the predictive…

Teacher-student relationships (TSR) have been linked in research to a positive correlation with Student Academic Achievement (SAA). However, few of these studies have used empirical data to quantitatively link TSR to SAA. This study used an explanatory sequential mixed method design model to explain quantitative results through semi-structured…

Individual speakers' speech patterns differ from one another, despite presumably similar language input. What are the sources of this individual variability? In this dissertation, I explore sources of individual differences in pronunciation of coronal obstruents (/s/, /t[superscript h]/, /c[superscript h]/, /c/) at the ends of nouns in Korean.…

Statistical learning (SL), the ability to detect and extract regularities from inputs, has been considered as an early-maturing and domain-general mechanism that is critical for typical language development. However, recent evidence in neurotypical adults and children have found that individuals can vary in their SL abilities across linguistic and…

The goal of this study is to contribute to the field of Japanese pedagogy by examining how Japanese native speakers and learners of Japanese as a foreign language with American cultural backgrounds take stances in discussions in Japanese. As stancetaking is a fundamental human behavior (Du Bois & Karkkainen, 2012; Iwasaki, 2015; Kiesling,…

Prospective memory (PM), the ability to remember to execute an intention in the future, is critical for the performance of everyday tasks important for independence and quality of life. PM failures are associated with negative health, financial, and social outcomes, and are more frequent with increased age and can be even greater for older adults…

This conceptual work examines the impact of the preexisting characteristics found among kindergarten through fifth grade-teachers who are more likely to implement culturally responsive teaching (CRT) practices in their instruction and daily routines. The Culturally Responsive Teaching Self-Efficacy Scale (CRTSE) was administered to participants…

This quantitative study examined the effects of stored color knowledge on learning achievement and cognitive load using a randomized pretest-posttest control group design. Social media was used to recruit 60 adult participants, randomized into control and experimental groups. A multimedia lesson was presented where the control group viewed images…

High school students' chemistry self-efficacy (CSE) and scientific identity (SI) are not well understood in the high school chemistry classroom. The purpose of this research was to quantitatively investigate the interaction between gender and giftedness on students' CSE and SI in a suburban high school chemistry classroom, with and without…

The purpose of this quantitative comparative between-groups study was to assess if and to what extent differences exist in achievement emotions and adaptability between first-generation and second-generation undergraduate college students who transitioned to online courses as a result of the COVID-19 pandemic at a higher educational institution in…

Professional development and learning are vital components of the educational system due to their dynamic impact on teachers (Bayar, 2014; Darling-Hammond, 2010; Guskey, 2002). Despite the importance of teacher development and the impact of student learning outcomes, professional development and learning often rely on traditional…

Alumni giving is a critical revenue stream for Christian liberal arts colleges that originated as Bible institutions. This dissertation presents an in-depth case study of alumni donation patterns, focusing on how the transition from Bible colleges to liberal arts institutions has influenced giving behaviors. The study examines demographic factors…

Although an increasing number of Latinx students are enrolling in higher education, only a small percentage graduate from two and four-year universities compared to their counterparts. This study explored the relationship between demographic variables and grit scores among undergraduate students. Grit, defined as the perseverance and passion for…

In recent years, Third Language Acquisition (TLA) in Cross-Linguistic Influence (CLI) research has been debated regarding background languages' impact on learning a target language. While Second Language Acquisition (SLA) research often emphasizes the primary influence of the first language (L1) on the target language, it does not discount the…

Research into second language acquisition (SLA) has shown that individual difference (ID) variables can be strong predictors of language achievement (e.g., Dornyei, 2003; Skehan, 2003). Traditionally, this research conceptualized ID variables as static and monolithic variables (e.g., Dornyei, 2010). More recently scholars have questioned this…