The project S-FACTOR ("Facilitation Robotics for Teams--Foundational Research on Group Processes in Human-Robot Ensembles with Social Robots")  investigates how human groups perform certain tasks when they are guided by a “social robot”. We conduct a series of experiments to explore whether social robots can facilitate positive group processes.  The embedding methodological framework is "Integrative Social Robotics",which demands value-driven research targets, mixed method research, and the full incluson of humanities expertise into research and development processes. The project will be realized collaboratively by four research groups at Skandinavian research  institutions (Aarhus University, the Royal Institute of Technology at Stockholm, the University of Helsinki, and the University of Southern Denmark); it is sponsored by the NORDFORSK Foundation.