Shahriar Sarvari - Payame Noor University, Talesh Branch, Iran
Ebrahim Ezzati - Department of Linguistics and Foreign Languages, Payame Noor University, Tehran Branch, Iran

This study examined the effectiveness of Telegram social network on the writing performance of adult English as foreign language (EFL) learners at intermediate level. To achieve this, Oxford Quick Placement Test (۲۰۰۴) was administered to ۴۶ EFL learners at Zaban-e No language institute in Talesh, Iran. Those who met the selection criterion, i.e., performed one standard deviation above and below the mean on the test were divided into two classes (n = ۳۰): control group (n = ۱۵) and experimental group (n = ۱۵). Participants in the experimental group were provided with writing instruction and contributed cooperatively to the task of writing through Telegram for ۸ weeks (۲ sessions each week, and ۹۰ minutes per session) while the control group underwent a traditional instruction of writing. Pretests and posttests of writing task were administered and t tests were used to compare means of test scores within and between groups. The results revealed that while the two groups were homogeneous in terms of their writing performance before the treatment, the experimental group outperformed the control group on the posttest. That is, teaching writing through the Telegram social network was a significantly effective model to improve EFL learners' writing performance.

computer-assisted language learning (CALL), social network, Telegram, learner, Writing