Questions: Consistency Principle and Cognitive Coherence

Question 1

A public health campaign wants to reduce vaccine hesitancy in a community where distrust of government institutions is a deeply held central belief. Based on the consistency principle, which strategy is most likely to be effective?

• A. Present detailed scientific evidence directly refuting the specific claim that vaccines are unsafe
• B. Identify peripheral attitudes (e.g., trust in local doctors, care for neighbors) and introduce vaccine information consistent with those
• C. Confront the central belief directly to force recognition of the inconsistency
• D. Argue that the belief is incoherent, triggering cognitive dissonance that demands resolution

Answer: (B)

Direct attacks on central beliefs are typically resisted because the consistency principle means the person would need to restructure many interconnected beliefs to accommodate the change — which is too costly. Working at the periphery — through attitudes already held (local trust, community care) that can be connected to vaccination — introduces small inconsistencies at the edges. Once peripheral behaviors or attitudes shift, the consistency drive may pull the network toward updating the central belief. Options A and C both attempt direct confrontation of the core belief, which the consistency principle predicts will be resisted.

Question 2

In Heider's balance theory, if you dislike a politician (C), and your close friend (B) strongly endorses that politician, the triad is imbalanced. Which resolution does balance theory predict is psychologically available?

• A. You will always change your view of the politician to match your friend's
• B. The imbalance will resolve only through attitude change, never through relationship change
• C. You may change your view of the politician, reduce your esteem for your friend, or compartmentalize the relationship
• D. You will inevitably lose respect for both your friend and the politician

Answer: (C)

Balance theory specifies that imbalanced triads create pressure to change, but it does not dictate which element changes. Any of several resolutions restore balance: liking the politician (attitude change toward C), reducing your attachment to your friend (attitude change toward B), or cognitively segregating the domains ('we just don't discuss politics'). The theory predicts that at least one change will be pressured — not which one. This flexibility is why balance theory remains useful despite its simplicity.

Question 3

According to the consistency principle, direct argumentation against a person's core belief is generally the most effective route to changing that belief.

• T. True
• F. False

Answer: False

The consistency principle predicts the opposite: central beliefs are embedded in dense networks of interconnected attitudes, and changing one central belief would require cascading updates throughout the entire network. This makes direct attacks on core beliefs psychologically costly and therefore highly resistant. More effective approaches work at the periphery — changing related behaviors or peripheral attitudes — allowing the consistency drive to propagate change inward from the edges, rather than forcing it from the center outward.

Question 4

Getting someone to act consistently with a desired attitude — even before they hold that attitude — can lead them to genuinely adopt the attitude over time, because the consistency drive accommodates the new behavioral facts.

• T. True
• F. False

Answer: True

This is the mechanism behind behavior-based attitude change. Once a behavior exists as a fact in the world, the person's consistency drive must accommodate it. If behavior and attitude are inconsistent, one must change — and it is often easier to update the attitude than to undo the behavior. This is why foot-in-the-door techniques, role-playing exercises, and 'act as if' approaches can produce genuine attitude change rather than mere behavioral compliance.

Question 5

Why does the consistency principle predict that behavior-based change is often more powerful than argument-based persuasion?

Model answer: Arguments can be countered, dismissed, or compartmentalized — the consistency drive generates counter-arguments that defend the existing attitude network. But behaviors, once performed, are facts in the world that cannot simply be argued away. The consistency drive must now reconcile the new behavior with existing attitudes, and since the behavior cannot be undone, the most efficient path is often to update the attitude. This makes the consistency drive an ally rather than an obstacle: instead of fighting it through argument, behavior-based change leverages it.

The key insight is that the consistency motive which normally resists persuasion becomes the engine of change when behavior leads. Arguments trigger defensive consistency maintenance; behaviors bypass it by creating prior commitments the drive must then rationalize.