“…A group-focused leader highlights each individual's role as a member of the group and consistently motivates and equips employees to transcend immediate personal goals for the sake of the common good (Choi, 2009;Podsakoff et al, 1990;Richardson & Vandenberg, 2005 Despite some evidence to the contrary for noninterdependent teams (e.g., Bergeron, 2007;Podsakoff & MacKenzie, 1994;Viswesvaran & Ones, 2000), helping behaviors contribute to overall group performance in teams with at least a moderate level of task interdependence (Bachrach, Powell, Collins, & Richey, 2006;George & Jones, 1997;Nielsen et al, 2012;Saavedra, Earley, & van Dyne, 1993). Namely, helping a coworker is likely to streamline workflow processes, redistribute tasks to prevent delays in task completion, and contribute to timely, high-quality completion of the overall project (Porter, 2005;Porter et al, 2003;Porter, Gogus, & Yu, 2011). Therefore, we formally hypothesize a mediated relationship between group-focused transformational leadership and group performance through helping behavior.…”