I have learned a general rule about the effectiveness of feedback meetings whenever I present results of a focus group or another research to a client: The fewer people in the room, the more productive the meeting will be. The higher up in the hierarchy the client is positioned (when dealing with high-level politicians, leaders of associations, or CEOs for example), the more this is true. At least for the first feedback meeting the correlation is -1.0. And the reason for it is quite obvious: The results my affect egos, budget, or turf wars. Worse, I may have to talk about vulnerabilities of the top candidate. With new clients, I often run into resistance against my request to limit the number of participants, but I ultimately convince them with the following line: Do you bring your entire team and family along when you go to the urologist?