Within second language acquisition research, L2 development has been traditionally analyzed through the dimensions of Complexity, Accuracy and Fluency (CAF) (Larsen-Freeman, 2009; Ortega, 2003; Skehan, 2009). Complexity within the CAF framework has gained the most attention and has often been examined through measures associated with clausal…

The first part of this dissertation conducts a large-scale study comparing general and usage-based indices of syntactic complexity in L2 Mandarin writing samples across a wide range of proficiency levels. To do this, the Tool for the Automated Analysis of Syntactic Sophistication and Complexity (TAASSC; Kyle, 2016) was adapted for Mandarin by…

For Chinese students, studying in a country with different cultural components and language structures is challenging. Compared to English, the Chinese prefers shorter and simple sentence structure and allows for two sentences to be stated side by side. Different sentence structures in Chinese may influence native-Chinese readers' understanding of…

This study used corpus-based methodology to analyze what, if any, differences exist in the linguistic complexity of EdD and PhD dissertations in Educational Leadership. The study is conceptually framed around language variation within discipline and genre. The corpus created for this study, DISSCORP, was comprised of 200 dissertations, 100 EdD and…

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,…

The present dissertation intends to investigate the syntactic nature and L2-acquisition of passive sentence structure in two Romance varieties, Italian and Spanish. First, I will present an analytic proposal couched within the Generative Approach (Chomsky, 1957, and subsequent work); from there, and following Perlmutter and Postal's (1977)…

Semantic illusions are recognition errors that occur when an individual fails to notice that information contradicts their prior knowledge (Barton & Sanford, 1993; Erickson & Mattson, 1981). For example, after hearing the question, "If a plane crashes while flying over state lines, where should the survivors be buried?" many…

Mandarin Chinese verbs are composed of one to four characters that function together as a conceptual unit. However, in modern spoken Chinese, most of these verbs are two-character compounds. This dissertation is focused on adult second language (L2) learners' acquisition of these two-character verb compounds. Specifically, the acquisition of a…

In secondary and post-secondary content courses, the use of writing to facilitate complex learning in advanced content areas, which is called writing to learn content, can help students to evaluate their understanding, higher order cognition, and thinking about the content to learned (Carifio, 2005; Hayes, 2006; Carifio, 2015). The primary focus…

Achieving sufficient proficiency in academic writing is critical in university level setting. It is not surprising hence, that the admission to English speaking universities is usually conditioned not only by a particular total score from Standardized tests of English proficiency, e.g., TOEFL or IELTs but also a specific band score in writing. To…

Recently, there has been considerable L2 research on interfaces between different modules of grammar (internal), such as syntax-semantics, or between grammar and other cognitive systems (external), such as semantics-pragmatics. Sorace's (2011) Interface Hypothesis proposes that L2 learners, even at highly proficient levels, often fail to integrate…

Expectations have been placed upon elementary teachers from the Common Core State Standards in English Language Arts to guide students through close readings of informational and literary texts. This content analysis examined online close reading lesson plans to determine common objectives in elementary close reading lessons using literary text…

In the past three decades, the construct of second language (L2) writing complexity has been theorized and refined in both second language acquisition (SLA) (Crossley, 2020; Housen, De Clercq, Kuiken, & Vedder, 2019; Lu, 2011; Norris & Ortega, 2009) and Systemic Functional Linguistics (SFL) research (Byrnes, 2009; Ryshina-Pankova, 2015;…

Tennessee's public community college system implemented corequisite remediation for underprepared students during the Fall 2015 semester. As a result of the Tennessee Board of Regents corequisite remediation initiative, students with academic placement scores determined to be below college level on an instrument such as the ACT often work in the…

Syntactic (i.e., grammatical) complexity refers to the range and the degree of sophistication of the forms that appear in language production (Ortega, 2003). This concept has long been regarded as an important construct of language proficiency and has been actively investigated in the field of second language (L2) writing. Syntactic complexity is…