“…However, controversies exist regarding the role of negative activating emotions such as anxiety, guilt and shame (Marcos-Llinás and Garau, 2009;Teimouri, 2018;. As for anxiety, researchers reported contradictory results in terms of whether anxiety exerts a debilitating effect (Oya et al, 2004;Shao et al, 2013;, a facilitating effect (Marcos-Llinás and Garau, 2009;Trebits, 2016), or no effect on L2 achievement (In'nami, 2006). Zhang's (2019) meta-analysis showed that anxiety was overall negatively correlated with L2 performance and that the controversies among previous studies may be explained by the moderator variables such as the anxiety type, age, and lexical similarity.…”