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Chapter 11

COMM 151 Chapter Notes - Chapter 11: Delphi Method, Prime Factor, Group Polarization

Course Code
COMM 151
Christopher Miners

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COMM 151 Chapter 11 Notes (pg 359-374) Group Decision Making
Group Decision Making
Why Use Groups?
Decision Quality
Groups more vigilant than individuals more people scanning the environment
which can be very advantageous at the problem ID and info search stages
Members might have unique info that proves to be useful
Generate more ideas than individuals therefore more alternative solutions and
different perspectives to the problem (different “attacking” strategies)
Evaluate ideas better than individuals an extreme decision by one member can
be offset by the other members
Decision Acceptance and Commitment
People wish to be involved in decisions that will affect them
People will better understand a decision in which they participated
People will be more committed to a decision when they invested time and energy
towards the decision more willing to carry it out
The acceptability of a decisions is especially useful in dealing with the problem of
getting a decision implemented if they’re committed, it WILL get implemented
Diffusion of Responsibility
The two prior are sensible reasons to use team decision making
The ability of a group members to share the burden of the negative consequences
of a poor decision is a less admiral reason
Do groups make Higher Quality decisions than individuals?
Groups should perform better than individuals when:
Members differ in relevant skills and abilities, as long as they do not differ so
much that conflict occurs
Division of labour can occur within a group
Memory for facts
Individual judgments can be combined by weighting them to reflect the expertise
of the various members
equal weighting of opinions/averaging is inappropriate for some groups that have more
expertise concerning a particular problem such expertise must be recognized
Disadvantages of Group Decision Making
Groups do not work as quickly/efficiently compared to individuals
When speed of solution is a prime factor, avoid groups
Participants have their own resources to protect therefore the decision quality
may a take back seat to political wrangling and infighting
Compromise will not result in the highest or most creative decisions
Groups will make decisions when they feel that they are psychologically safe
If group is dominated by a single person, the advgs of groups won’t be realized
If dominant person has bets info, his style still won’t lead the group to accept it
If dominant person is misinformed the group decision is likely to be ineffective
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