The Linguistic Realization of Politeness Strategies in Academic Lecture Discourse

Abstract

Academic lectures are typically regarded as authoritative forms of communication; however, the sociopragmatic mechanisms through which lecturers manage interpersonal relationships while maintaining instructional authority remain insufficiently understood. While hedging in written genres has been widely studied, how educators balance instructional force and interpersonal rapport in real-time speech remains underexplored. Therefore, this study aims to examine the frequency and pragmatic functions of politeness strategies within academic lecture discourse to identify how lecturers systematically manage rapport and mitigate power distance. Adopting a mixed-methods design, the study analyzed a diverse corpus of transcripts from English-Medium Instruction (EMI) courses at several prestigious universities, utilizing a systematic coding framework based on established linguistic politeness models. Results demonstrate that downtoners are the most prevalent strategy, followed by consultative devices, indicating a clear preference for discourse mitigation and audience engagement. Analysis of pragmatic functions reveals that while agent avoiders create institutional distance, lecturers primarily rely on hesitators and committers to soften epistemic authority by framing knowledge as subjective contributions. These tools form an integrated communicative system that successfully balances professional authority with approachability. The study concludes that effective academic interaction is a collaboratively constructed achievement that prioritizes audience psychological comfort and intellectual autonomy. These findings advocate for a broader theoretical shift in discourse studies, emphasizing sociopragmatic elements as a key factor in understanding interactional meaning-making in academic discourse.