Abstract
Numerous studies support peer-reviewing as beneficial for second language learners, enhancing writing quality, critical thinking, and overall English proficiency. However, there is still a limited number of research on how this technique influences students' ability to produce well-structured academic writing. Peer-reviewing and traditional writing instruction have quite different learning goals. Peer-reviewing aims to make students actively engage in evaluating and providing feedback on peers' work, developing their analytical skills and writing awareness. Meanwhile, traditional writing instruction emphasizes teacher-centered feedback and individual writing practice. This research aims to examine the effect of peer-reviewing strategies on students' ability to improve their writing skills among EFL undergraduates. The method used in this research is experimental by using "One Group Pretest-Posttest Design." This design requires conducting a pre-test before implementing the treatment, then followed by conducting a post-test once it is completed. The results of this study indicated that the peer-reviewing strategy applied to class A of the English Education Study Program for one semester can significantly improve the quality of students' writing skills. This improvement can be seen from the results obtained in the pretest and post-test which have been conducted before and after treatment (Peer-Reviewing). By conducting peer-reviewing activities, it can bolster students' academic writing scores by cultivating deep-seated writing competence, vocabulary breadth, grammar awareness, and critical thinking skills. Through consistent engagement in evaluating and providing feedback on diverse peer texts, students enhance their overall writing proficiency, fostering a solid foundation for improving academic performance.
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