"Since their initiation, LGATs have been the subject of much controversy. While LGAT supporters argue that such interventions are vehicles for personal growth and societal change and are a cost-effective means of introducing beneficial therapeutic messages to large audiences (Berger, 1977; Erhard & Gioscia, 1978; Shaw, 1977), others view them as a hazardous and irresponsible use of powerful psychological principles and psychotherapeutic procedures (see, e.g., Brewer, 1975; Rome, 1977)."