English language teaching methods have been transforming to improve learners’ English language proficiency. Currently, effective teaching methods are essential for enhancing learners’ academic achievement. Despite the recognition of collaborative learning as a beneficial approach, research specifically investigating its effects on writing performance remains limited. Therefore, this study aimed to investigate the effects of collaborative writing on Ethiopian English as a Foreign Language students’ writing accuracy, fluency, and complexity performance; it is a crucial area in language pedagogy that has not been extensively examined. Employing a quasi-experimental design, the study selected a total of 86 students, with 43 participants from each of two grade 10 classes. One class was assigned to the experimental group, where students participated in collaborative writing activities. The other class served as the control group, receiving conventional writing instruction. The intervention was implemented over a 12-week period. Data were collected through pre- and post-writing tests, and the results of the pre and post writing performance tests were analyzed using descriptive statistics, an independent-samples t test, and ANCOVA. The results revealed a statistically significant difference between the experimental and control groups in writing accuracy and fluency. However, there was no statistically significant difference between the two groups in terms of writing complexity performance. The findings indicate some theoretical and pedagogical implications to enhance advancements in writing proficiency, and overall, the study concludes by offering suggestions for future research.
Abdeta et al. (Thu,) studied this question.