Examines conditions which predipose group members to seek redress for a perceived injustice by forming an alliance against a group leader. Predicts that: (1) coalition attempts will be more frequent in unfair cases than in fair ones; (2) members of a revolutionary coalition will attempt to restore equity under specified conditions; and (3)…

The aim of this study was to describe and analyze the nature of group work through a series of thirteen video taped classroom lessons for fourth grade students. Using a case approach technique, the emphasis was on methodological problems. The study showed that even the investigation of a single mode of instruction such as group work is a highly…

Two hundred twenty-seven organizational units drawn from a variety of industries were cluster-analyzed on the basis of their similarities across 18 behavioral and structural dimensions of effectiveness. Using a multivariate subgrouping procedure, eight homogeneous clusters of units were found, varying in size from 8-65 units, and each…

Videotaped group work lessons of an elementary school third grade class provide material for study of the non-verbal aspect of group behavior. A system of activity categories is developed and a typology of pupils' working methods in group study distinguishes types and characteristic forms of activity. The following activity categories are used in…