Social Comparison Theory

Social comparison theory, proposed by Leon Festinger, is the idea that people evaluate their own abilities, opinions, and worth by comparing themselves to others, which shapes self-concept and attitudes (AP Psychology Topic 9.2, Attitude Formation and Attitude Change).

Verified for the 2027 AP Psychology examLast updated June 2026

What is Social Comparison Theory?

Social comparison theory is Leon Festinger's idea that you figure out where you stand by looking at the people around you. There's no objective measuring stick for "Am I smart?" or "Are my opinions reasonable?" So your brain finds one anyway, and that measuring stick is other people. You compare your abilities, opinions, looks, and achievements to those of others, and that comparison shapes both your self-concept and your attitudes.

The comparisons run in two directions. Upward comparison means measuring yourself against people who are doing better than you, which can motivate you or tank your self-esteem. Downward comparison means measuring yourself against people doing worse, which usually makes you feel better about your own situation. The people you compare yourself to most are your reference group, the set of others you actually use as your standard. Change the reference group and you change how a person feels about themselves, even if nothing about them has changed.

Why Social Comparison Theory matters in AP Psychology

Social comparison theory lives in Topic 9.2, Attitude Formation and Attitude Change, in the Social Psychology unit of AP Psychology. It's one of the core mechanisms the CED uses to explain where attitudes come from. You don't form your beliefs in a vacuum; you constantly calibrate them against the people around you. That's why social comparison connects directly to bigger social psych phenomena like group polarization (comparing your views to like-minded peers can push your attitudes toward the extreme) and to self-concept material. If a question asks why someone's attitude shifted after joining a new group, or why their satisfaction changed when their surroundings changed, social comparison is often the engine behind the answer.

How Social Comparison Theory connects across the course

Cognitive Dissonance Theory (Unit 9)

Both theories come from Leon Festinger, which is exactly why the exam loves pairing them. Social comparison is about measuring yourself against other people; cognitive dissonance is about the discomfort of conflicting beliefs inside your own head. Same psychologist, different mechanism.

Upward and Downward Comparison (Unit 9)

These are the two flavors of social comparison. Upward comparison (looking at people above you) can motivate or discourage you; downward comparison (looking at people below you) usually boosts how you feel. Know which direction produces which emotional effect.

Reference Group (Unit 9)

Your reference group is who you're comparing yourself to. A B+ student feels great in a struggling class and terrible at an elite school, even with the same grades. The comparison target, not the objective reality, drives the self-evaluation.

Elaboration-Likelihood Model (Unit 9)

Topic 9.2 covers multiple routes to attitude change. The elaboration-likelihood model explains persuasion through central and peripheral routes, while social comparison explains attitudes you absorb just by sizing yourself up against others. Keep the mechanisms separate in your head.

Is Social Comparison Theory on the AP Psychology exam?

Social comparison theory shows up in multiple-choice questions as an application task. You'll get a scenario (someone feels worse after scrolling a friend's vacation photos, a worker's job satisfaction drops after a coworker's promotion) and you have to pick social comparison as the mechanism, or identify whether the comparison is upward or downward. Practice questions also push it into group settings, like explaining why political views become more extreme among like-minded peers, or predicting unexpected outcomes when diverse workplaces try to shift attitudes about inclusivity. No released FRQ has used the term verbatim, but it fits the Article Analysis and Evidence-Based questions whenever a study involves self-evaluation, self-esteem, or attitude change in groups. The two skills you need are recognizing the theory from a scenario and attributing it correctly to Festinger.

Social Comparison Theory vs Cognitive Dissonance Theory

Festinger proposed both, so they blur together fast. Social comparison theory is about evaluating yourself relative to OTHER people ("How do I stack up?"). Cognitive dissonance is about a conflict WITHIN yourself, where two clashing cognitions create discomfort that motivates you to change an attitude or behavior. Quick test for any scenario: if the tension comes from comparing yourself to someone else, it's social comparison; if it comes from your own contradictory beliefs or actions, it's dissonance.

Key things to remember about Social Comparison Theory

  • Social comparison theory, developed by Leon Festinger, says people evaluate their own abilities, opinions, and worth by comparing themselves to others.

  • Upward comparison (comparing to people better off) can motivate you or lower self-esteem, while downward comparison (comparing to people worse off) tends to boost self-esteem.

  • Your reference group, the specific people you compare yourself to, determines how the comparison feels, so the same achievement can feel like success or failure depending on the audience.

  • Social comparison is one mechanism of attitude formation in Topic 9.2 and helps explain group effects like opinions becoming more extreme among like-minded peers.

  • Don't mix up Festinger's two theories: social comparison is tension between you and others, while cognitive dissonance is tension between conflicting beliefs inside yourself.

Frequently asked questions about Social Comparison Theory

What is social comparison theory in AP Psychology?

It's Leon Festinger's theory that people determine their own social and personal worth by comparing their abilities, opinions, and attributes to those of others. In AP Psych it falls under Topic 9.2, Attitude Formation and Attitude Change.

How is social comparison theory different from cognitive dissonance?

Both are Festinger's theories, but social comparison is about measuring yourself against other people, while cognitive dissonance is about internal conflict between your own clashing beliefs or behaviors. Comparison is external; dissonance is internal.

Is downward comparison always a bad thing?

No. Downward comparison, judging yourself against people who are worse off, typically protects or boosts self-esteem and can help people cope during hard times. It only becomes a problem when it breeds complacency or unfair judgments of others.

What's the difference between upward and downward comparison?

Upward comparison means comparing yourself to someone doing better, which can inspire improvement or make you feel inadequate. Downward comparison means comparing yourself to someone doing worse, which usually makes you feel better about your own situation.

Who came up with social comparison theory?

Leon Festinger, the same psychologist behind cognitive dissonance theory. The AP exam may test whether you can attribute each theory to him and, more importantly, tell the two mechanisms apart in a scenario.