Leila Tajik - Alzahra University
Maryam Fakhari - Alzahra University
Maryam Hashamdar - Alzahra University
Somayeh Habib Zadeh - Alzahra University

This study was conducted to examine the effect of three types of comments, i.e. imperatives, questions, and statements, with different communicative purposes, i.e. giving information and making a request, given by an ELT teacher and peers on  students’ revision of their writings. Sixty-four female students, between ۱۶ and ۲۶ years old studying at high-intermediate level of English language proficiency in Iran Language Institute (ILI) participated in this quasi-experimental study. They constituted four intact classes, two of which received feedback on their writing from their teacher, and the other two received peer feedback.  One hundred and twenty eight pairs of students’ drafts including ۶۷۲ instances of revisions of their writings based on teacher or peer comments were collected and analyzed based on the rubric designed by Ferris (۱۹۹۷). It was found that questions and statements provided by the teacher with the purpose of making a request, and statements given by the peers with either one of communicative functions all bring about the best results in students’ writings. On the other hand, the analysis of the revisions made by the students showed that statements provided by the teacher for the purpose of giving information has the least positive effect on the students’ modifications. Surprisingly, questions provided by the teacher and peers with the purpose of giving information were found to have negative effects on the students’ writing.

peer feedback, teacher feedback, content, comment type, communicative purpose