en روان شناسی تربیتی Educational Psychology پژوهشي Original <div style="text-align: justify;"><span style="color:#0000ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:2;"><b>Objective</b>: The present study aimed at investigating an already-proposed problem-based model of writing on Iranian EFL learners&rsquo; writing skill.<br> <b>Methods</b>: In so doing, an experimental pre-test post-test control group study was designed. The participants of the study consisted of 60 female advanced EFL learners who were randomly selected from eighty-eight learners who were passing an IELTS preparation course at a private language institute. The study sample was randomly assigned into two groups (each consisting of 30 learners) namely, the experimental and the control groups. Two samples of IELTS Writing Task 2 were used for the purpose of measuring the participants&rsquo; writing skill at the beginning (pre-test) and end (post-test) of the study. To analyze the data, normality test, descriptive and inferential statistics (i.e., analysis of covariance (ANCOVA) test) was used.<br> <b>Results</b>: The results of data analysis showed that the proposed problem-based model of writing affects Iranian EFL learners&rsquo; writing skill.<br> <b>Conclusions</b>: The findings have pedagogical implications for EFL teachers and learners, and curriculum planners.</span></span></span></span></div> Collaborative learning, Higher-order thinking, Problem-based learning, Self-directed learning, Writing skill 73 90 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-618-1&slc_lang=en&sid=1 Hanieh Kashi Hani_kashi2000@yahoo.com 10031947532846009830 10031947532846009830 No PhD Candidate, Department of English Language, Qeshm Branch, Islamic Azad University, Qeshm, Iran Shahram Afraz sh.afraz@iauqeshm.ac.ir 10031947532846009831 10031947532846009831 Yes Assistant Professor, Department of English Language, Qeshm Branch, Islamic Azad University, Qeshm, Iran Fazlolah Samimi Fazl.samimi67@gmail.com 10031947532846009832 10031947532846009832 No Assistant Professor, Department of English Language, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran