Meeting Focus Group Dynamics and Stability 31 Oct. 2011, 04:15 p.m. – 05:45 p.m. material In this session we intend to discuss in detail Volkhard Krech’s introductory paper given at the annual conference of … Meeting Plenary Session Research Field 2 31 Oct. 2011, 06:15 p.m. – 07:45 p.m.