The “It Works on Them” Effect
In media psychology, the third-person effect is the tendency to expect a message to influence other people more than it influences you. A person might see an ad tailored to their searches and conclude that it could sway someone less careful—but not them.
That judgment can feel reasonable because people notice their own thoughts and choices from the inside. They know they considered alternatives or spotted the sales pitch. Other people’s reactions are harder to observe, so it is easier to imagine them being persuaded.
Recognizing the Pitch Isn’t the Same as Resisting It
Targeted ads are designed to match a person’s interests or likely needs. Recognizing that an ad is personalized can make its strategy obvious, but awareness alone does not prevent it from drawing attention, shaping what seems familiar, or nudging a choice. Influence need not mean a viewer blindly believes an ad; it can be a small shift in what they notice or consider.
There is also a self-image at stake. Believing “I’m too savvy for that” protects a sense of independence, while attributing influence to other people can make their decisions seem easier to explain. The result is a confidence gap: we may scrutinize the tactics aimed at us while underestimating how they affect us in ordinary, subtle ways.
A Useful Check on Confidence
The effect is a tendency, not proof that every person is fooled or that every ad works. A more revealing question than “Could this persuade me?” is “Did this change what I noticed, searched for, or considered buying?” Those shifts can happen without feeling like persuasion—which is precisely why presumed immunity is hard to judge from the inside.
