ADMS 2511 Lecture 30: ADMS 2511 Lecture 30 Notes
1 May 2018
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ADMS 2511 Lecture 30 Notes – Weaknesses of Group Decision Making, Effectiveness and
Efficiency
Introduction
• They offer increased diversity of views, which opens up the opportunity to consider
more approaches and alternatives.
• Finally, groups lead to increased acceptance of a solution.
• Group members who participated in making a decision are likely to support it
enthusiastically and encourage others to accept it.
Weaknesses of Group Decision Making
• Group decisions are time-consuming because groups typically take more time to reach a
solution.
• There are conformity pressures.
• The desire by group members to be accepted and considered an asset to the group can
result in squashing any overt disagreement.
• Group discussion can be dominated by one or a few members.
• If they are low- and medium-aility eers, the group’s oerall effetieess ill
suffer.
• Finally, group decisions suffer from ambiguous responsibility.
• I a idiidual deisio, it’s lear ho is aoutale for the final outcome.
• In a group decision, the responsibility of any single member is watered down.
Effectiveness and Efficiency
• Whether groups are more effective than individuals depends on how you define
effectiveness.
• Group decisions are generally more accurate than the decisions of the average
individual in a group, but they are less accurate than the judgments of the most
accurate group member.
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