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Learning collaboratively in virtual groups is seen as a promising alternative to the outcome of an individual (Breen,2013). However, working in a virtual group does not guarantee a good solution and performance of the individuals. Rather, working in groups presents several hurdles that need to be overcome to realize the full potential of the group and allow it to focus on performance (Peters & Manz, 2008). Franceschi et al. (2007) also state that learning in virtual groups has a positive impact on student learning and engagement, but that there is a lack of pedagogical concepts to guide the groups on their way to performance. Also Gabelica et al. 2012 state:” providing teams with adequate support is needed to secure teamwork. Research on team learning and performance has increased our understanding of how teams learn but is still in its development phase and in search for leverage points that can be used to trigger team learning” (Gabelica et al., 2012, p.124). Within this scope, Krause et al. (2009) make clear that groups use feedback more efectively than individuals and that this has a benefcial efect on the learning behavior of the group members. Concerning feedback research, it should be noted that feedback can have a positive efect on learning behavior and outcome, provided that it is implemented correctly (Shute,2007). ... To include multiple perspectives, an explanatory mixed methods approach from Hanson et al. (2005) with the support of Ivankova et al. (2006) has been chosen. In the frst step, a superordinate quantitative survey was conducted among the students of the virtual collaboration case study work in the virtual classroom. The results of the survey have then been examined and explained in more detail by e-tutors in a qualitative focus group discussion to deepen the understanding. Subsequently, the results were classifed and interpreted within the scope of recent feedback research. Based on the combination of a quantitative survey and the qualitative focus group discussion, seven concrete recommendations for the design of feedback guidelines in virtual group work were subsequently derived. ... [Aus: Introduction]