Employee satisfaction and psychological status in organizations has been an important part of organizational studies since the Hawthorne Study in 1930. In this research, we use the concept of social network analysis to investigate the effect of interaction inside a group. The proposed approach analyzes a pair of adjectives in terms of personalities, a concept that can be extended to investigate the similarities of group members. This research samples 8 groups and finds that: (1) “openness to experience” is the indicator for the natural formation of a group, (2) “conscientiousness” is the indicator for the formation of a group by a task, especially in a highly task-oriented environment, and (3) couples only have parts of similarity among five factors. The study provides direction for future research into similarity of group members.
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