“…Communication among instructors and students affects substantially the learning process, behavior, thinking and motivation (Bekiari, 2014;Richmond, McCroskey, Kearney, & Plax 1987). However, verbal aggressiveness is widespread significantly in educational environment (Bekiari, Koustelios, & Sakellariou, 2000;Yaratan & Uludag, 2012;Kikas, Peets, Tropp, & Hinn, 2009) and comprises a feature of destructive communication that erodes human relations (Infante & Rancer, 1996;Infante & Wigley, 1986;Bekiari, Kokaridas, & Sakellariou, 2005;Bekiari, Digelidis, & Sakellariou, 2006;Bekiari, Patsiaouras, Kokaridas, & Sakellariou, 2006;Johnson, Becker, Wigley, Haigh, & Craig, 2007;Myers, Edwards, Wahl, & Martin, 2007;Bekiari, 2012;2016;Rancer & Avtgis, 2014;Bekiari, Perkos, & Gerodimos, 2015;Bekiari & Manoli, 2016;Bekiari & Pylarinou, 2017;Manoli & Bekiari, 2015), while a collaborative form of communication which promotes amity, is reduced (Hamilton & Hample, 2011). Communication form adopted by instructors may lead to students' anti-social behaviors (Claus, Booth-Butterfield, & Chory, 2012;Hassandra, Bekiari, & Sakellariou, 2007).…”