“…In addition, more studies have been performed to investigate the effectiveness of WCF in developing learners' accuracy in L2 development that followed research designs like the ones used in investigating various forms of oral corrective feedback (CF). A consistent evidence provided by these recent studies (Sheen, 2007(Sheen, , 2010Bitchener, 2008;Ellis et al, 2008;Sheen, Wright, & Moldawa, 2009;Bitchener & Knoch, 2009a, 2009bVan Beuningen, de Jong, & Kuiken, 2012;Shintani, Ellis, & Suzuki, 2014;Stefanou & Revesz, 2015;Karim & Nassaji 2018 ;Westmacott, 2017;Banaruee, Khatin-Zadeh, Ruegg, 2018) revealed that CF has performed a significant role in assisting learners to acquire grammatical features thus improving their linguistic proficiency in the target structure of the language.…”