Two-phase testing assesses individual performance (phase 1) and then allows collaborative learning within small groups (phase 2). While groups typically outperform individuals, less is known about the social decision schemes that influence member collaboration. In a classroom setting, we compared individual and group performance on a standard test…

Heterosexually balanced groups were exposed to encounter-group tapes instructing them to share initmate experiences. Examples of high self-disclosure and openness were presented. Exercises differed only in instructions and accompanying behavioral examples. Results indicated that higher levels of disclosure produced greater group cohesiveness on…

Investigated the relationship between establishment of pregroup goals and postgroup assessment of progress toward goals. Participants were categorized by selection of goals, with interpersonal-relationship and self-confidence goals determining the category. The progress-toward-goal post-test revealed more progress on top-ranking goals than on…

Presents a study designed to contrast the effects of task-based and interpersonal cohesiveness on group performance of students. Concludes that high task cohesion helped group performance, while interpersonal attraction had no apparent effect. Finding that increased interpersonal cohesion improved task commitment, the authors suggest that…

A study examined the relationship between participation and performance in groups to determine whether increased communicative activity brought about through participation in groups resulted in the acquisition of specific types of organizational knowledge and increased motivation which positively affected performance. Subjects for the study were…

Reviews the literature on unidimensional and multidimensional models of cohesion and describes cohesion as a multidimensional construct with primary and secondary dimensions. Found that primary dimensions described the cohesiveness of all or most types of groups, whereas secondary dimensions only described the cohesiveness of specific types of…

The social and collective aspect in human activities has become one of the main issues in Vygotskian analyses of learning and development. The study assumed that this aspect presupposes some feeling of belonging together and having a shared commitment on the part of the participants. Asserting that relatively little attention has been given to…

Examined whether group members differ in the number of in-group subtype distinctions that they draw. Drawing on results of two studies, found that members of groups whose primary function is intragroup interaction (fraternities, sororities, athletic teams) draw more subtype distinctions within their own group than within other groups. (RJM)

Presents results of a study contrasting different forms of group cohesiveness in a student military organization. Reports that task cohesiveness was more strongly associated with lower role uncertainty, higher individual performance, and lower absenteeism than was interpersonal cohesiveness. Concludes that data provide evidence for a…

Considers two determinants--one cognitive and the other motivational--of perceptual fluctuations of in-group variation. Results indicate that when motivation to protect social or personal identity from threat is absent, priming the in-group social category promotes a homogeneous and cohesive view of the in-group. (RJM)

Summarizes research comparing boundaries around larger and smaller groups. Finds that the perception of group boundary permatbility varies with group size. Reports a greater perceived distinction between the group and the individual passerby as group size increases. Describes the effects of varying group member proximity. Discusses implications…