The study aims to investigate phrasal complexity measures that can predict EFL students' academic writing proficiency. Academic English written test responses were derived from written responses from the Khon Kaen University Academic English Language Test (KKU-AELT). Five hundred and thirty written responses were separated into groups based on…

English language writing is seen as one of the most difficult skills for undergraduate students. When composing a piece of writing, students usually face various problems ranging from grammatical aspects to expressing ideas and opinions. To answer the research questions, this study employed a mixed method of both qualitative and quantitative…