Third Person Effect

When asked 72% of participants believed the results of a primary election woud not influence their presidential vote.However, 52% said it would influence and therefore must be affecting other voters. 

We believe mass media has a much stronger impact on others than it does on us. 

See the full study here :

W. PHILLIPS DAVISON, The Third-Person Effect in Communication, Public Opinion Quarterly, Volume 47, Issue 1, SPRING 1983, Pages 1–15,

Want to know more about biases?

Rhyme-as-Reason Effect

Identifiable Victim Bias

Endowment effect

Loss Aversion