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◉ Psychology·1 min·Updated Mar 13, 2026

What is Cognitive Dissonance?

Cognitive Dissonance

Quick Answer

Cognitive Dissonance is the mental discomfort experienced when a person holds two or more contradictory beliefs, values, or ideas. This discomfort often leads individuals to change their attitudes or behaviors to reduce the inconsistency.

Overview

Cognitive Dissonance occurs when a person feels conflicted because their beliefs and actions do not align. For example, someone who smokes cigarettes but knows that smoking is harmful may feel uneasy about their choice. This discomfort can lead them to either quit smoking or downplay the dangers of smoking to feel better about their decision. The theory of Cognitive Dissonance is important in social psychology because it helps explain how people strive for internal consistency. When faced with dissonance, individuals often seek to justify their behavior, leading to changes in beliefs or attitudes. This process can influence decision-making, as people may alter their perceptions to align with their actions. Understanding Cognitive Dissonance is valuable in various contexts, such as marketing, education, and personal relationships. For instance, a person who buys an expensive item may experience dissonance if they later find a cheaper alternative. To resolve this discomfort, they might convince themselves that their purchase was worth it, illustrating how dissonance can shape our thoughts and behaviors.

Frequently Asked Questions

Cognitive Dissonance is caused by the conflict between a person's beliefs and their actions. When these do not match, it creates a feeling of discomfort that individuals try to resolve.
To reduce Cognitive Dissonance, a person can change their beliefs, alter their behavior, or rationalize the discrepancy. For example, they might justify their actions or seek out new information that supports their choices.
Cognitive Dissonance is not always negative; it can lead to positive changes. While it causes discomfort, it can motivate individuals to reflect on their beliefs and make better decisions.