This study is about the structure of the noun phrases used with with signalling nouns, which are abstract nouns that are hard to understand without a context. The inspiration for the study comes from work by John Flowerdew. The aim is to investigate in what type of noun phrases (NP) the signalling nouns are used by L2 English students and if the structures of these NPs tell us something about the meaning of the nouns. The material of the study is from the pioneering learner corpus the International Corpus of Learner’s English (ICLE). In general, it was found that the chosen signalling nouns thing, argument, possibility, chapter, kind and fact, are frequently used in complex NPs. There were some differences in the distribution of nouns, with thing, kind and fact having rather high frequencies in comparison to the other nouns. For this reason, samples of these nouns were selected for the analysis. The findings indicate that these signalling nouns rarely appear alone but are most often used in complex NPs. Furthermore, the results also show that a large proportion of these nouns is used in fixed phrases.

<div>Since the 1990s, grammatical complexity is a topic that has received considerable attention in various fields of applied linguistics, such as English for academic purposes, second language acquisition, language testing, and second language writing (Bulté & Housen, 2012). Many scholars in applied linguistics have recently argued that grammatical complexity has primarily been represented by clausal features (e.g., subordinate clauses), and it is important to study grammatical complexity as a multidimensional construct based on both clausal features and phrasal features (Biber, Gray & Poonpon, 2011; Norris & Ortega, 2009). Thus, this dissertation is a corpus-based investigation on how the use of noun phrases is influenced by two situational characteristics of a university context: academic level and first- and second-English language background.</div><div><br></div><div>I built my corpus by extracting 200 essays from British Academic Written English Corpus, which represents academic writing of (1) undergraduate and graduate students and (2) L1 and L2 students. Noun phrase complexity was then operationalized to the 11 noun modifiers proposed in the hypothesized developmental index of writing complexity features in Biber, Gray and Poonpon (2011). The 11 noun modifiers were extracted from the corpus and counted for statistical analysis via a set of Python programs. With a Chi-square test followed by a residual analysis, I found that both academic level and first- and second-English language background influenced noun phrase complexity but in distinct ways. The influence of academic level is primarily associated with three phrasal modifiers (i.e., attributive adjectives, premodifying nouns, and appositive NPs) and two clausal modifiers (i.e., relative clauses and noun complement clauses). The undergraduate corpus includes more of the two clausal modifiers, whereas the graduate corpus has more of the three phrasal modifiers. This suggests that, in these 200 essays, graduate students tend to build more compressed NPs than undergraduate students. However, the influence of first- and second-English language background derives from a much broader range of noun modifiers, including eight noun modifiers (e.g., attributive adjectives, relative clauses, infinitive clauses). More diverse NP patterns with different noun modifiers are in the L1 corpus than in the L2 corpus. Surprisingly, the L2 corpus has more phrasal noun modifiers (i.e., attributive adjectives, premodifying nouns), which has been argued to indicate advanced levels of academic writing. A qualitative analysis on selected essays reveals that some cases of attributive adjectives and premodifying nouns are repeatedly used by L2 students to help content development in their writing. Overall, this dissertation adds an additional piece of evidence on the importance of noun phrase complexity in writing research.</div><div><br></div>

English Language Learners (ELLs) are a growing population within the U.S. school system. In the secondary grades, this diverse group requires instruction to improve not only English language proficiency but also utilization of the academic language register, especially in writing tasks. The present study focused on ELLs in middle school. The aim was to explore the effects of enhanced Self–Regulated Strategy Development (SRSD) writing instruction on the use of complex language, particularly elaborated noun phrases (ENPs) when SRSD was combined with linguistic instruction on increased sentence complexity. As a part of a larger study exploring critical literacy and the persuasive writing instruction of Spanish–English speaking students, this repeated measures design detailed the effects of two six–week instructional periods aimed at teaching 19 ELLs methods for organizing, planning, and constructing persuasive texts (the macr–-structure level), as well as ways of incorporating academic language forms and functions in their writing (the micro–structure level). Within the critical literacy project that involved topics and themes related to immigration, the 19 students produced three texts in English (pre–, mid–, and post–instruction essays). These texts were analyzed for ENP frequency and complexity. Three case studies were also chosen to highlight the variation in ENP outcomes and to discuss additional aspects of persuasive writing at both the macr–- and micro–structure levels. Statistical analysis of group use of ENPs revealed no significant increase in frequency or complexity across essays as simple pre–noun modifications were produced in amounts greater than all other ENP type across all essays. The three case studies revealed that frequency of ENP use generally corresponded to strength of abilities at either the macro–structure level, such as inclusion of more persuasive elements, or the micro–structure level as indicated by increased text length and variety of vocabulary. One implication of these outcomes indicates the need for more in–depth emphasis on the coordination of both the macro– and micro–structure levels in writing instruction studies with ELLs. Other implications pertain to further analysis of classification approaches for designating ENP complexity, and how enhanced understanding of ENP production signals aspects of the academic language register.