Cognitive Dissonance

What Is Cognitive Dissonance

Cognitive dissonance is a concept proposed by psychologist Leon Festinger in 1957, referring to the uncomfortable state of tension that arises when two contradictory cognitions (beliefs, attitudes, or behaviors) coexist within a person. Knowing that "smoking is bad for my health" while continuing to smoke. Declaring "I'm on a diet" while eating cake. The unease generated by these contradictions is cognitive dissonance.

Strategies for Reducing Dissonance

Humans cannot tolerate this discomfort and seek to resolve the dissonance by some means. There are three main strategies. First, change the behavior (quit smoking). Second, change the cognition ("My grandfather smoked and lived to 90" - emphasizing exceptions). Third, add new cognitions ("It relieves stress, so it's actually a net positive for health" - rationalizing). In most cases, changing cognition is psychologically cheaper than changing behavior, so people tend to drift toward distorting their interpretation of facts. This is one reason why clearly irrational beliefs are so resistant to correction.

The Everyday Impact of Cognitive Dissonance

Cognitive dissonance strongly influences purchasing behavior as well. The impulse to convince yourself "I definitely made the right choice" after an expensive purchase (post-purchase rationalization) is a dissonance-reduction behavior. Likewise, the tendency to assign inflated value to something you invested great effort in (effort justification) is a product of dissonance. The more grueling an initiation ritual, the stronger the sense of belonging to the group - because the dissonance-reduction mechanism kicks in: "I went through all that suffering, so this group must be worth it." When reflecting on your own judgments and actions, asking "Do I truly believe this, or am I just trying to resolve dissonance?" is a first step toward intellectual honesty.