Further Notes on Chapter 6 - Decision Making
From Lunenberg, F.C.,
& Ornstein, A.C. (1991). Educational Administration Concepts and
Practices, pp. 151-175. Belmont CA: Wadsworth Publishing Co.
Models of decision making
All models of decision making consider
it to be a rational concept. E.g., Herb Simon's model:
- Intelligence activity: search the environment for conditions calling
for decision making
- Design activity: invent, develop, and analyze various courses of
action from which to choose
- Choice activity: select a particular course of action from options
available.
Henry Mintzberg's model:
- Identification phase: recognize a problem or opportunity and make a
diagnosis
- Development phase: search for existing standard procedures or design
a new tailor-made solution (involves trial & error)
- Selection phase: choose a solution either by judgment of the decision
maker, by logical analysis of the choices, or by bargaining when the selection
involves a group of stakeholders.
Classical model
Decisionmaking is a rational process that seeks to
maximize the chances of achieving the desired outcome by considering all
possible alternatives, exploring all consequences thereof, and then making a
decision. It assumes that the decisionmaker has perfect information, knows all
alternatives and their possible consequences, and possesses a criterion for
making the decision that involves maximizing the desired objective. There are 6
steps in the process:
- Identifying the problem (recognize it, determine optimum level of
performance, divide into subproblems, specify the problem in terms of the gap
between actual and optimal - cf. Rossett)
- Generating alternatives (consider them all, no matter how ridiculous
- brainstorm)
- Evaluating alternatives (consider all possible intended and
unintended outcomes, assess them, then assess the likelihood of each outcome -
positive and negative - to each alternative)
- Choosing an alternative (rank your alternatives and select the best
one - hopefully one with a high probability of positively valued outcomes and a
low probability of negatively valued ones)
- Implementing the decision (sell it to those affected by it)
- Evaluating the decision (measure actual performance against
performance objectives).
Behavioral Model
Rationality is bounded. Your information is
incomplete, you can't generate all possible solutions, you can't accurately
predict all consequences, and it's impossible to determine exactly which
alternative is optimal. Here are your options:
- Satisficing: choose the first alternative that satisfies minimal
standards of acceptability
- Contextual rationality: choose the best decision mediated by
polilcies, conflict-resolution requirements, distribution of power and
authority, and the limits of human rationality
- Procedural rationality: focus on the procedures used to make the
decision, such as operations research, systems analysis, strategic planning,
etc., and use whatever information they furnish
- Retrospective rationality: devote your energy in justirying the
rationality of decisions you have already made
- Incrementalizing: make small changes incrementally in the existing
situation and "muddle through"
- Garbage Can Model: members of your team collect solutions; they mix
problems, solutions, and decision participants and come up with some patterns
of interaction that the rational model won't predict.
Vroom-Yetton Normative Model
This identifies five decision making
styles, identifies criteria for choosing among them, and describes attributes
of the problems that determine which levels of suboordinate participation are
feasible. Finally, it offers rules for making the final choice.
- Decision feasibility: quality, acceptance, and timeliness
- Decision quality: is it effective?
- Decision acceptance: are they accepted by your subordinates?
- Timeliness: if short-time, be autocratic; if lots of time, be
participative.
There are five decision making styles:
- AI: autocratic (make the decision yourself)
- AII: get information from subordinates, then make the decision
yourself
- CI: consultative (share the problem individually with subordinates,
then make the decision yourself)
- CII: share the problem as a group with your subordinates and make the
decision yourself
- GII share the problem and reach a consensus decision.
If there's not enough information and you require good decision
quality, eliminate AI.
If decision quality is important and subordinates
won't buy in, then eliminate GII.
For unstructured problems, choose CII or
GII.
If acceptance by subordinates is crucial, eliminate AI and AII.
If
acceptance is crucial and there's a lot of disagreement, eliminate the first
three.
If negotiation is critical to determine what is fair and equitable,
choose only GII.
If acceptance is critical and the subordinates want equal
partnership in the decisionmaking process, choose only GII.
Benefits of shared decisionmaking
Since group decisionmaking is
the product of interpersonal decisionmaking processes and group dynamics, an
administrator must lead the group from a collection of individuals to a
collaborative decisionmaking unit. Research is ambiguous between the relative
effectiveness of individual vs. participative decisionmaking. The benefits of
shared decisionmaking over individual decisionmaking are:
- Decision quality is better because there's more information available
- Groups provide a greater number of approaches to a problem
- Participation in the decisionmaking process promotes buy-in
- Group participation increases understanding of the decision
- Groups are more effective at evaluating alternatives because of the
increased knowledge and viewpoints available
- Major errors tend to be avoided.
Problems in shared decisionmaking
One big one is groupthink. It
has 8 symptoms:
- Illusion of invulnerability
- Rationalization based on past decisions
- A belief in the inherent morality of the group
- Stereotyping of oppositino leaders
- Direct pressure against dissenting voices
- Self-censorship of any deviations from consensus
- Shared illusion of unanimity (assuming silence means consent)
- Appointing mindguards that might shatter their shared complacency
Groupthink occurs primarily when
- the group is cohesive
- the group is insulated from qualified outsiders
- the leader promotes her own favored suggestion.
Nine suggestions to avoid groupthink:
- assign the roles of critical evaluators to all members
- leaders should be impartial at the outset
- set up several independent groups to look at the same problem
- divide into independent groups when feasibility and effectiveness of
alternatives are being examined
- periodically discuss the group's deliberations with trusted outsiders
- invite qualified outside experts to each meeting
- assign the role of devil's advocate to at least one member
- survey warning signals from rivals and construct alternative
scenarios
- call on all members to express their doubts before making a final
choice
Risky Shift
Stoner's research shows that group decisions are
consistently riskier than individual decisions because responsibility is
shared, group leaders are greater risk takers than individuals, gorup
discussion leads to a more thorough examination of the pros and cons of the
outcomes, and riskk taking is socially desirable in our culture.
Escalation of commitment
There is a tendency of groups to escalate
commitment to a course of action in order to justify their original decision.
Shared decision-making techniques
- Brainstorming: generate a wide variety of new ideas. Do not evaluate
them or discuss alternatives, do not consider any idea outlandish, welcome
large quantities of ideas, try to combine similar ideas.
- Nominal group: generate and evaluate ideas: post them on a flip chart
and allow members to evaluate them silently, elicit one new idea from each
member, discuss each idea on the flip chart in order, preliminary vote on
importance of each item, analyze and discuss voting patterns, and then take a
final vote and close the decision process. (This is what we do at RMC.)
- Delphi technique: identify a panel of experts, send the problem to
each one individually, each one solves the problem, a central location compiles
all these comments, each panelist receives a copy of the whole thing, each
expert provides feedback on all the other comments, and the last 2 steps are
repeated until consensus is reached.
- Devil's advocacy: after a planning group has developed alternative
solutions to a problem, the plan is given to one or more staff members with
instructions to find fault with it.
- Dialectical inquiry: form two or more homogeneous but totally
divergent gorups to present the full range of views on the problem, have each
group meet independently to identify its own assumptions and rate them, have
them debate the other groups and defend their position, analyze information
from all groups, and then attempt to achieve consensus among all groups.
Needless to say, a full consensus does not always follow, though this is a good
way to get rid of groupthink.