commitment and consistency termbias
people behave consistently with prior public commitments
Cialdini's second principle. Once people commit publicly — even to a tiny initial position — they continue acting consistently with it. 'Foot in the door' technique exploits this: get a small yes, then escalate. In engineering: getting a stakeholder on record favoring an approach makes future agreement more likely. Protective use: don't commit publicly to positions you might want to revise.