Contextual meanings: an investigation of their persuasive power in research article introductions

The thesis explores the persuasive power of contextualisaton in research article (RA) introductions. Contextualisation is understood within the framework of systemic functional grammar (SFL). It refers to the interpersonal working of meanings at the interface of discourse semantics and lexicogrammar, as these meanings frame and shape discourse participants and processes, to evoke particular understandings that serve the text's social purpose. A corpus of six RA introductions from the disciplines of history, social science and inorganic chemistry was selected. Analysis included transitivity, periodicity, Theme and appraisal. The thesis argues that in the corupus, contextual meanings fulfil crucial interpersonal tasks, such as framing inquiry, engaging communities, establishing research importance and foregrounding critical issues. Findings suggest contextual meanings work in several ways, with varying densities and on multiple levels, to create interpersonal impacts. Analysis indicates the conglomeration of contextual meanings at particular points is a significant indication of persuasive risk, where precise meaning is required, such as in research claims. It is intended the research will be pedagogically useful in informing development of resources for students who struggle with academic English and experience difficulty, and even failure, in effectively foregrounding their work