By Margaret Lowenfeld

There is the diagnostic play group, in which the behavior of children at play both in regard to each other and their relation to material is observed, and the observations new to assist the psychiatrist in his diagnosis and treatment of any single child. This group is usually under the control of a supervisor whose training has been directed towards observation and handling of a group of children, and the making of reports to a psychiatrist, but not to the undertaking of actual individual or group therapy.