Based on their investigation, the current research examines the disfluency in speech production produced by Iraqi students at the Department of English - Open Educational College- Fallujah Study Center. The aims of this study are to identify the various kinds of disfluency, as well as the prevalent kinds and similarities and differences between the students' disfluencies. This kind of study is qualitative. The research utilizes disfluent utterances from students in the third and fourth stages as its data source.The researcher gathers data by attentively listening to the audio recording, writing the audio scripts, administering a questionnaire, identifying the data, and choosing the data that deals with various kinds of deficiency. The disfluencies are analyzed by the researcher using the theories of Fox Tree, Levelt, Shriberg, and Clark and Wasow. The findings show that students make three different kinds of disfluencies that were produced by students in the English Department at OEC, overt repair, hesitation, and repetition.The duration of study done by third and fourth-year students is used to analyze them. Hesitancy is the most prevalent type of disfluency that students experience most learners have. The overall number of disfluencies produced by learners in the third and fourth stages then makes a difference. First, the researcher identified commonalities between the three forms of disfluencies: overt repair, hesitation, and repetition. Second, student's hesitancy is the most common form of disfluency.
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