Post-decisional justification gives people an excessively optimistic evaluation of their decisions, until they receive very clear and undeniable information to the contrary.

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Post-decisional justification, also known as cognitive dissonance, is a well-documented phenomenon that leads people to justify their decisions even when faced with evidence that contradicts them. This can result in an overly optimistic evaluation of their choices until they are presented with undeniable evidence to the contrary.

Post-Decisional Justification Gives People an Excessively Optimistic Evaluation of Their