هدی سیستانی

Among four language skills, writing is a complex and demandingcognitive process.Writing is an important tool in evaluationwhere English proficiency needs to be assessed. The present study aimed to explore the impact of feedback provided by Grammarly Software compared to teachers’ feedback on the writing ability of Iranian EFL learners. Through the nonrandom sampling method, 60 intermediate male and female EFL learners were selected, then they were randomly assigned to two main groups: the experimental and control group. The participants were administered the Oxford Placement Test (OQPT), Pretest of Essay Writing, Grammarly software program, Posttest of Essay Writing, and an attitude questionnaire in ten sessions. The data gathered from the comparison of pretest and posttest revealed that the experimental group members outperformed those in the control group, meaning that the Grammarly software program positively affected the EFL learners' writing ability. The results might have implications for language teachers, learners, and materials developers.