This study is aimed at investigating the effect of reading-based vs. discussion-based pre-writing activities on the writing ability of Iranian EFL learners. To this end, a quasi-experimental study was conducted with 40 Iranian intermediate EFL learners within16 to 20 age range who were selected based on their performance on an Oxford Solution Proficiency Test. They were divided into two experimental groups: Reading Group and Discussion Group. The former group was made to involve in some reading activity prior to doing the main writing task, and the latter group was made to participate in a discussion activity before the main writing task. After the treatment for 10 sessions, both groups were post-tested. The findings indicated that both groups’ writing ability improved over the course of the study, but the difference between the performances of the groups on the post-test was not statistically significant, although the Reading group’s mean score was greater than the Discussion group. The results of this study have some implications for students, language teachers, syllabus designers and material developers. پرونده مقاله