The aim of this study is to investigate the pragmatic language behavior of Turkish learners of English in formal complaint situations through the comparison of their speech act performances to those of native speakers. The data was collected from a total of 276 participants, 132 Native Speakers (NSs) and 144 Turkish Learners (TLs) of English. Three different data collection methods were used: a) Discourse Evaluation Task (DET); b) video-recorded role plays; and c) open-ended oral interviews. The results indicate that native English speakers’ and Turkish learners’ production of complaints reflects a significant difference with respect to the linguistic components and the pragmatic choices made in complaining. A significant contribution of the current study to the literature is the Discourse Evaluation Task (DET), which is both a data collection tool and a term used for the first time in this paper.

中文翻译：

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言语行为的比较研究：母语为母语的人和土耳其英语学习者的正式投诉

这项研究的目的是通过将土耳其英语学习者的言语行为与母语人士的言语行为进行比较，以调查土耳其英语学习者在正式投诉情况下的实用语言行为。数据来自总共276位参与者，132位母语为母语的人（NSs）和144位土耳其语学习者（TL）的英语。使用了三种不同的数据收集方法：a）话语评估任务（DET）；b）录像的角色扮演；c）开放式口头访谈。结果表明，以英语为母语的人和土耳其学习者的抱怨产生反映了在抱怨的语言成分和务实选择方面的显着差异。当前研究对文献的重要贡献是话语评估任务（DET），