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Third-Person Effect

Interpersonal psychological effect

Definition

We often believe persuasive messages influence other people more than they influence us.

Why it happens

We have access to our own conscious reasoning but not to all the subtle influences affecting us. Believing that we are less persuadable can also protect our self-image as independent and rational.

Real-life examples

  • You believe social-media advertising manipulates other users but not your own purchases.
  • Both sides of a political disagreement believe the opposing side is controlled by biased media.
  • A person assumes product placement affects children and friends while having no effect on their own preferences.

How to counter it

  1. Track whether exposure changes your attention, preferences or behaviour.
  2. Evaluate persuasive techniques before deciding that only other people are affected.
  3. Notice when you feel immune to a message that others find convincing.
  4. Compare your behaviour before and after exposure to persuasive content.

Quick tips

  • Ask what the message wants you to feel or do.
  • Compare your behaviour before and after exposure.
  • Notice repeated brand or political messages.
  • Separate conscious agreement from subtle influence.
  • Apply media-literacy questions to yourself too.

Sources and further reading

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