Abstract
No previous studies have employed sociocultural theory and the notion of collaborative dialogue to examine collaborative writing in Saudi Arabia, where students favor writing individually. Exploring this topic is significant because of the importance the Saudi education system places on learning English, especially at the university level. Therefore, this longitudinal classroom-based study tested how collaborative writing affected the development of university students learning English as a foreign language in Saudi Arabia. The 46 participants were evenly divided into a control group, who wrote essays individually, and an experimental group, who worked on essays in small groups. Both groups took a pre-test before the eight-week intervention and a post-test at the end. The experimental group also took an end-of-study questionnaire. Although both groups showed improvement, the experimental group improved significantly more on the post-test than the control group and expressed positive attitudes toward collaborative writing on the questionnaire. The study concludes with theoretical and pedagogical implications and recommendations for future research.