Chapter 10 – Group Dynamics
10–36
SUPPLEMENTAL LECTURETTE 2: DIVERSITY AND GROUP PROCESSES3
APPLICATION
This lecturette may be used to complement the chapter’s coverage of group structure
and composition.
* * *
Ethnic diversity in groups.
A popular research topic involves the impact of diverse group composition on group
functioning. One theme which has emerged is the idea that organizations should learn
to properly manage diversity not only because of the inevitable demographic trends, but
also because of the potential to use a diverse workforce as a source of competitive
advantage. For example, ethnically diverse groups might be better able to plan
strategies to appeal to diverse customer markets. That is, ethnic diversity when
properly managed can produce tangible, positive effects on organizational outcomes.
Research by Watson, Kiman, and Michaelsen showed that ethnically homogeneous
groups performed better than heterogeneous groups during the early stages of group
development. However, these between-group differences in performance converged
over time, with heterogeneous groups eventually performing better than homogeneous
groups on some measures. McLeod, Lobel, and Cox explored the impact of ethnic
group diversity on creativity. Briefly, their reasoning was as follows: “Heterogeneity of
group member characteristics is associated with variety in perspectives. Variety in
perspectives is associated with high-quality idea production, especially when group
members are heterogeneous along a dimension relevant to the task facing the group.
Therefore, the variety of perspectives associated with heterogeneity along the
dimension of ethnicity should lead to the production of high-quality ideas on a task that
is relevant to ethnicity. To explore this hypothesis, they compared the performance on
a brainstorming task between groups composed of all Anglo-Americans with groups
composed of Anglo, Asian, African, and Hispanic Americans. Approximately 22% of the
ethnic minority group members were born outside the US. They found that the ideas
produced by the ethnically diverse groups were of significantly higher quality (i.e., more
effective and feasible) than the ideas produced by the homogeneous groups. Members
of homogeneous groups were marginally more attracted to their groups than were
members of the diverse groups.
3 Adapted from P. Mcleod, S. Lobel, and T. Cox, Jr., “Ethnic Diversity and Creativity in Small Groups” Small Group
Research, May 1996, Vol. 27 No. 2, pp. 248-264; E. Filardo “Gender Patterns in African American and White
Adolescents’ Social Interactions in Same–Race, Mixed-Gender Groups,” Journal of Personality and Social
Psychology, July 1996, Vol. 74 No. 4, pp. 71-82.