Attitude-behavior consistency

Attitude-behaviour consistency is a central concept in social psychology, referring to the relationship and alignment between an individual's beliefs, or attitudes, and their actions, or behaviour. Specifically, the concept attitude-behaviour consistency addresses the parts of the study of attitudes in which social psychologists examine whether people's actions can be understood as arising from their beliefs and opinions.

Source: Wikipedia — Attitude-behavior consistency (CC BY-SA 4.0)