“…Apparently, instructors' verbal aggressiveness decreases students' participativeness (Myers, Edwards, Wahl, & Martin, 2007;Rocca, 2004), motivation and satisfaction or learning outcome (Bekiari, 2014;Bekiari & Hasanagas, 2016 a, b;Bekiari, Kokaridas, & Sakellariou, 2005;Bekiari, Koustelios, & Sakellariou, 2000;Manoli & Bekiari, 2015;Myers, 2002;Teven, 2007;Teven & McCroskey, 1997;Thweatt & McCroskey, 1998), affection in learning (Bekiari, 2012;Bekiari & Manoli, 2016;Bekiari & Tsaggopoulou, 2016;Myers et al, 2007;Schrodt, 2003;Wrench & Punyanunt-Carter, 2005), attractiveness (Bekiari & Petanidis, 2016;, communicative competence 2016 c;Bekiari & Sakellariou, 2003;Buford, 2010;Rocca & McCroskey, 1999), prosocial fairness (Hassandra, Bekiari, & Sakellariou, 2007), Machiavellianism (Bekiari, 2016(Bekiari, , 2017, intrinsic discipline Bekiari & Pylarinou, 2017;Bekiari & Tsiana, 2016), bullying (Bekiari, Pachi, & Hasanagas, 2017) and climate in class Myers & Rocca, 2000). In physical education, instructors' verbal aggressiveness is perceived as less favorable for the students and restricts sportsmanship (Kassing & Infante, 1999) and credibility (Mazer, Barnes, Grevious, & Boger, 2013) and feel less motivated (Bekiari, Perkos, & Gerodimos, 2015).…”