“…Presence, development and survival of trust is so vital for group performance that its effect on group outcomes has been extensively examined in the literature (Stacey, 2002;Liu, Magjuka & Lee, 2008;Mitchell & Zigurs, 2009;Van Gennip, Segers & Tillema, 2010;Fransen, Kirschner & Erkens, 2011). Mutual trust, and sense of community (Fransen Weinberger, & Kirschner, 2013;Leroy, Rittner, Johnson, Gerteis, & Miller, 2017) are defined to be as key factors to successful collaboration. In fact, building up mutual trust improves learnerlearner interaction (De Meo, Messina, Rosaci, & Sarné, 2017) or vice-versa.…”