Research on the Influence of an Online Collaborative English Learning Platform on College Students' English Writing Ability

Against the backdrop of the digital transformation of higher education, English writing ability has become an increasingly critical core competence for college students. This study investigates the impact of an online platform integrating artificial intelligence and collaborative learning mechanisms on students' English writing abilities. The experimental group utilized an online collaborative platform featuring intelligent feedback, structured peer review, cross-cultural vocabulary guidance, and process tracking, while the control group adopted traditional pen-and-paper instruction. Results demonstrated that the experimental group significantly outperformed the control group in four dimensions: grammatical accuracy, lexical diversity, collaborative engagement, and writing efficiency. Student questionnaires also reflected high perceived usefulness and ease of use for the platform. Overall, the findings demonstrate that the proposed platform effectively enhances both writing quality and learning experiences, providing strong empirical support for the reform of intelligent writing pedagogy in higher education.