Core term · Leon Festinger

Belief Change

How a person comes to revise what they hold to be true, which Leon Festinger studied closely—finding that strongly held beliefs can grow even firmer when the evidence turns against them.

Who shaped this idea

The thinker behind it

From concept to practice

Turn Belief Change into a question you can answer.

Psipas asks you one small, honest question at a time — and builds the picture from your answers.