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)

Discusses distribution of capabilities and role assignments on a team and proposes a model linking variables that affect productivity. Research is needed on what interaction processes result from team characteristics and which processes affect team productivity for members with particular capabilities. (Author/JAC)

This article examines polydisciplinary groups in the human services, identifying four types: multidisciplinary, pluridisciplinary, cross-disciplinary, and interdisciplinary groups. Various problems in the use of these groups are then discussed, followed by an exploration of possible solutions. (Author/TE)