Abstract：Abstract: As a common concern among L2 writing teachers and researchers, accuracy has received much research effort mainly undertaken along two lines: feedback and collaboration. However, whether they can work as effectively in the classroom setting as in the lab setting remains an open question. Against this background, the current research proposes joint production as a new pedagogy by integrating feedback and collaboration and seeks to empirically prove its effectiveness. After an 18-week long treatment, the experimental group receiving joint production significantly outperformed the control group in terms of accuracy in English writing and the rate of improvement. Possible reasons were discussed and presented. This finding suggests the effectiveness of joint production and has implications for L2 writing teaching.
Key words: joint production; accuracy; feedback；L2 writing
