commitment-consistency
Commitment and Consistency
Overview
Small commitments today dramatically raise the probability of large commitments tomorrow — people have a strong drive to behave consistently with prior choices, especially ones that were public, voluntary, and effortful. Freedman & Fraser (1966) showed a trivial petition tripled compliance with a much larger request two weeks later. Cialdini (1984) systematized it as one of six universal influence levers. Use this skill to design ethical commitment paths (onboarding, sales, hiring, fundraising) or to defend yourself when past commitments are pulling you toward choices you wouldn't otherwise make.
Composes with reciprocity, social-proof, anchoring, door-in-the-face, sunk-cost-fallacy.
When to Use
- Designing user onboarding, sales sequences, or commitment ladders
- Hiring or fundraising processes; behavior-change initiatives
- Evaluating whether past small steps are pulling you toward a current decision you wouldn't otherwise make
- Defending against high-pressure sales or escalation tactics
Not when: genuinely single-shot with no prior commitment history; framing would pressure someone with already limited choice.