The intent of brainstorming is to produce totally new ideas and solutions by stimulating the
creativity of group members and encouraging them to build on the contributions of others.
Brainstorming does not provide the resolution to the problem, an evaluation scheme, or the
decision itself. Instead, it should produce a list of alternatives that is more innovative and
comprehensive than one developed by the typical interacting group.
2. The Nominal Group Technique
The nominal group technique is another means of improving group decision making.
Whereas brainstorming is used primarily to generate alternatives, this technique may be
used in other phases of decision making, such as identification of the problem and of
appropriate criteria for evaluating alternatives.
This technique uses a cycle of idea generation, discussion, voting, which continues until an
appropriate decision is reached.
The nominal group technique has two principal advantages. It helps overcome the negative
effects of power and status differences among group members, and it can be used to explore
problems to generate alternatives, or to evaluate them. Its primary disadvantage lies in its
structured nature, which may limit creativity.
3. The Delphi Technique
The Delphi technique was originally developed by Rand Corporation as a method for
systematically gathering the judgments of experts for use in developing forecasts.
It is designed for groups that do not meet face to face. For instance, the product
development manager of a major toy manufacturer might use the Delphi technique to probe
the views of industry experts to forecast developments in the dynamic toy market.
The manager who wants the input of a group is the central figure in the process. After
recruiting participants, the manager develops a questionnaire for them to complete.
The manager summarizes the responses and reports back to the experts with another
questionnaire. This cycle may be repeated as many times as necessary to generate the
information the manager needs.
The Delphi technique is useful when experts are physically dispersed, anonymity is desired,
or the participants are known to have trouble communicating with one another because of
extreme differences of opinion. This method also avoids the intimidation problems that
may exist in decision-making groups.
On the other hand, the technique eliminates the often fruitful results of direct interaction
among group members.
V. CREATIVITY, PROBLEM SOLVING, AND DECISION MAKING
Creativity is an important individual difference variable that exists in everyone. We describe it here
because it plays such a central role in both decision making and problem solving.
Creativity is the ability of an individual to generate new ideas or to conceive of new perspectives on
existing ideas.