摘要：This study examines the moderating effect of group cohesiveness both at the individual
and at the group level. In the individual-level study, moderating effect of group cohesiveness was
tested with 249 employees from a Korean manufacturing company. Group cohesiveness turned
out to have a negative moderating effect on the individual competency-performance relationship,
and this finding suggests that competency of a given group member would be restrained by other
group members under high cohesiveness. For the group-level study, group data of 42 teams from
the same company were formed. Unlike results at the individual level, group cohesiveness had a
positive interaction effect with competency on performance at the group level. In other words,
group cohesiveness reinforced competent group to achieve better performance.
关键词：Competency, Group cohesiveness, Performance, Multi-level
