“…This explanation is confirmed by some studies (e.g., Jafari & Ansari, 2012;Shehadeh, 2011) that found collaboration to improve the quality of writing. In this respect, some researchers pointed out that collaboration in writing leads to more correct grammar and lexis (Li & Kim, 2016), improved content and organization (Shehadeh, 2011), a stronger reader-writer relationship (Kuteeva, 2011), increased sense of audience (Sun & Chang, 2012), and better solutions to the linguistic problems writers usually encounter (Dobao, 2012). Moreover, collaboration forces student writers to share responsibility for the written product (Dobao, 2012), helps them acquire different writing skills (Mulligan & Garofalo, 2011), evokes a positive sense of competition among them (Bikowski & Vithanage, 2016), and enables them to recognize the weaknesses in their writing (Elola & Oskoz, 2010).…”