EFL learners’ low motivation and lack of sufficient prior knowledge can be regarded as the barriers that impede their success in presentation of high quality writing pieces. To solve the mentioned problems, some researchers suggest the application of inventive technology-enhanced instructions in teaching the writing skill. In this regard, WebQuest as a computer-based instructional model providing the already-selected website links can be proposed as an appropriate candidate. Hence, the very aim of the present experimental pre-test/post-test study was to address the effect of WebQuest-based instruction on Iranian undergraduate EFL learners’ achievements in their overall essay writing ability as well as their writing ability concerning the elaboration, focus, conventions, vocabulary, and organization sub-skills. To do so, 50 participants in the experimental group and 49 participants in the control group performed the WebQuest-based and the alternative tasks without access to the web links, respectively. To analyze the obtained data, six ANCOVAs were run. The results revealed a significant improvement in EFL learners’ overall writing performance as well as their outperformance in the organization, focus, elaboration, and vocabulary subskills, but not the conventions sub-skill. The findings of this study indicated optimistic implications about the potential applicability of novel educational technologies in Iranian higher education context. EFL learners’ improved writing performance and vocabulary acquisition as well as their increased motivation and collaboration in WebQuest-based writing classes can be regarded as a valuable clue for teachers, administrators, and designers to pave the way for further integration of innovative technologies in EFL settings.
