Reviews group behavioral issues from past space missions and simulations such as the Skylab Medical Experiments Altitude Test, Skylab missions, and Shuttle Spacelab I mission. Makes recommendations for future flights concerning commandership, crew selection, and ground-crew communications. Pre- and in-flight behavioral countermeasures are…

Discusses the definition and origin of the term "groupthink." Examines three studies on groupthink by John Courtright (1978), Matie Flowers (1977), and Philip Tetlock (1979). Concludes none of the three is superior to another but that it can be learned from all three that group decision making is fraught with danger. (ABL)

Reviews literature concerning newcomers in groups in different settings. Presents a general model examining factors felt to be important for successful assimilation in group psychotherapy, i.e., overcoming resistance to join group, clarifying group process, examining client's in-group behavior, and confirming client's expectations. (BH)

Reviews relevant issues in clinical social group practice including group versus individual treatment, group work advantages, approach rationale, group conditions for change, worker role in group, group composition, group practice technique and method, time as group work dimension, pretherapy training, group therapy precautions, and group work…