Shelley Staples PhD in Applied Linguistics, Northern Arizona University, 2014) teaches courses in the undergraduate English program, MA in ESL program, and Second Language Acquisition and Teaching PhD program. Her research focuses on the use of corpus-based discourse analysis qualitative and quantitative computational text analysis) to investigate language use across spoken and written contexts. The purpose of her research is to understand how linguistic variation is related to situational factors and speaker characteristics, including register, first language, cultural background, and proficiency levels of second language speakers. In addition, her research aims to inform language teaching and assessment, particularly in the areas of English for Academic and Specific Purposes EAP/ESP) which focus on teaching and learning in specific contexts. Her current projects focus on academic writing and health care communication.