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dc.contributor.authorMedimorec, Srdan 17:25:19 (GMT) 17:25:19 (GMT)
dc.description.abstractWhile much previous research has suggested that decreased transcription fluency has a detrimental effect on writing, there is recent evidence that decreased fluency can actually benefit cognitive processing. Across a series of experiments, I investigated the effects of experimental manipulations of transcription fluency on various aspects of essay writing (e.g., lexical sophistication), but also in the context of a single word generation task. In Chapter 1, I introduced disfluency by asking participants to type essays using one hand (vs. standard typing). The results showed that decreasing transcription fluency resulted in increased lexical sophistication. I proposed the time-based account of disfluency in composition whereby decreasing transcription fluency allows more time for lexical processes to unfold. In Chapter 2 I demonstrated that less fluent typing is not related to increased pause and revision rates. Chapter 3 provides a test between the time-based account and an account that attributes the effects to the disruption of typical finger-to-letter mappings caused by the disfluency. Here I slowed down participants’ typing by introducing a delay between keystrokes. The results presented in Chapter 3 are consistent with the time-based account. In addition, in Chapter 3 I also tested the hypothesis that, unlike in previous studies, the transcription disfluency manipulation in the current study did not introduce large working memory demands. The time-based account of the effects of disfluency in composition was further supported by the results of mediation analyses presented in Chapter 4. In Chapter 5 I investigated whether effects of disfluency on lexical selection extend beyond composition to a single word generation task. I discuss implications for writing implements, and lexical selection in composition.en
dc.publisherUniversity of Waterlooen
dc.subjectlexical sophisticationen
dc.subjectlexical selectionen
dc.titleOn the Effects of Disfluency in Complex Cognitive Tasksen
dc.typeDoctoral Thesisen
dc.pendingfalse of Waterlooen
uws-etd.degreeDoctor of Philosophyen
uws.contributor.advisorRisko, Evan
uws.contributor.affiliation1Faculty of Artsen

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