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CHAPTER 9: COGNITIVE DISSONANCE THEORY
Chapter objectives
This chapter introduces cognitive dissonance theory, a classic psychological perspective on
attitudes. It provides an overview of instances where an individual is more likely to experience
cognitive dissonance and ways individuals commonly attempt to decrease dissonance. The
chapter also discusses applications of the dissonance theory.
Terms and issues to know
Cognitive dissonance
Components of dissonance theory
Dissonance and decision-making
Dissonance and expenditure of effort
Induced compliance
Chapter outline
I. Foundations
A. Psychological theory
B. Leon Festinger
C. Dissonance means discord, incongruity, or strife
D. Cognitive dissonance:
2. Two cognitions are in a dissonant relationship when the opposite of one cognitive
element follows from the other
4. Core components:
a. Dissonance is psychologically uncomfortable, physiologically arousing, and
drives individuals to take steps to reduce it
b. Dissonance occurs when an individual:
i. Holds two clearly incongruent thoughts
ii. Freely performs a behavior that is inconsistent with an attitude
iii. Makes a decision that rules out a desirable alternative
c. The magnitude of dissonance depends on a host of factors, including the number
of dissonant elements and the importance of the issue
d. People are motivated to take steps to reduce dissonance, including changing
their attitude in response to a persuasive message
II. Dissonance and Decision Making
A.
dissonance (Aronson, 1968)
B.
C. If you can revise your decision you should have less dissonance
D. Research suggests the following techniques are used to reduce dissonance:
1. Change your attitude
3. Derogate the unselected alternative
4. Spread apart the alternatives
5. Alter the importance of the cognitive elements
7. Communicate
8. Alter the behavior
E. People prefer easier to harder ways of changing cognitive elements (Simon et al., 1995)
III. Dissonance and Expenditure of Effort
A. No matter how attractive a group is to a person it is rarely completely positive; usually
there are some aspects of the group that the individual does not like
2. May convince oneself that the group has many positive characteristics that justify the
1. People do not always rationalize effort by changing their attitude toward the group
2. May reduce dissonance in other ways – for example, by trivializing the initiation rite
IV. Induced Compliance
A. Dissonance theory makes the prediction that under circumstances where a person is
coaxed to argue publicly for a position he or she does not privately accept and cannot
justify doing so, they would come to evaluate the proposal favorably
2. Person freely chooses to perform an action that is inconsistent with his or her beliefs
or attitude
4. One way to reduce dissonance is to
the behavior
5. Convinces oneself that one really agrees with the message
B. Leon Festinger and J. Merrill Carlsmith in 1959 tested the theory:
1. Participant asked to take part in boring task then asked to tell next participant it had
been enjoyable
3. If paid $20, more easily justified, reducing dissonance
4. $1 condition rated the task more enjoyable suggesting they changed their attitude to
be consistent with behavior
C. Applications
2. Example: children exercising
V. Explanations and Controversies
A. People are driven by an overarching need to reduce inconsistency
B. Reasons for doing so has been interpreted in different ways by different scholars
C. Unpleasant Consequences + Responsibility = Dissonance
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F. Dissonance occurs when you are concerned that you look bad in front of others
G. Dissonance involves a threat to self-esteem
VI. Summary
A. Dissonance produces genuine, abiding changes in attitudes, beliefs, and behavior
B. Particularly powerful effects when the issue is important to the individual and touches on
the self-concept
C. Person must have freely chosen to perform the advocated behavior
D. Dissonance does not produce attitude change when behavior is coerced; in such
situations, the person feels no internal need to rationalize the behavior
VII. Dissonance and Persuasion
A. Suggestions for persuaders on how to use dissonance theory to change attitudes:
1. Make a commitment public
3. Confront people with their own hypocrisy
VIII. Conclusions
A. Dissonance is an uncomfortable state that arises when individuals hold psychologically
inconsistent cognitions
B. Dissonance also refers to feeling personally responsible for unpleasant consequences,
Discussion points/ projects/ questions
1. Think of a situation where cognitive dissonance may occur. What are some of the ways
an individual in that situation could reduce dissonance according to your text? The text
2. Consider the Festinger/ Carlsmith (1959) induced compliance study. Discuss why the $1
condition created more dissonance than the $20 condition. Do you think no money would
have been even more likely to create a situation of induced compliance? Why or why
not?