“…Several studies have also been conducted to examine the effects of teachers' personality traits on students' motivation and engagement (e.g., Gibbs and Powell, 2012;Sabet et al, 2018;Khalilzadeh and Khodi, 2021). Additionally, many empirical and theoretical studies have probed into the role of teachers' positive communication behaviors, including credibility (e.g., Imlawi et al, 2015;Derakhshan, 2021), immediacy (e.g., Dixson et al, 2017;Liu, 2021;Zheng, 2021), and confirmation (e.g., Shen and Croucher, 2018;LaBelle and Johnson, 2020;Gao, 2021), in promoting student academic motivation and engagement. Nonetheless, teacher praise as one of the most influential communication behaviors has received scant attention (Downs, 2017;Caldarella et al, 2021).…”