The T (training) -group is a training device. In this group 10-20 people meet with no agenda to explore what happens naturally in a group and how the group tries to solve the problems that evolve. The group usually meets for two-three weeks for several times a day. There is no leader, but a trainer who tries to help the members of the group observe their behavior and the responses elicited to compare these with the responses desired and to conceptualize the process. Starting in Bethel, Me, in 1947, these groups have attracted nationwide attention and similar and modified groups have been widely used. Since groups are the setting in which most formal education occurs this has been especially interesting to educators and the programs this book describes have been developed by the National Training Laboratories (NTL) of the National Education Association.
T-groups have also been used by large