Oddly Wired
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influence

A small request makes you agree to more.

A 1966 study found that homeowners were four times more likely to agree to a large, ugly sign in their yard if they had previously agreed to a small, inconsequential request.

The foot-in-the-door phenomenon happens because you have an internal drive to be consistent. Once you perform a small act of compliance, you shift your self-perception to match your actions, making larger requests harder to refuse.

Your self-image is being manipulated by your own past behavior.

Where this comes from

Study
Freedman and Fraser, 1966, Journal of Personality and Social Psychology
What the check found
The 'ugly sign' study (Freedman & Fraser, 1966) is a landmark in psychology. The 17% to 76% result supports the claim of a ~4.5x increase, but the quote is missing from the provided reference material.
Confidence
Contested

Related

One of these every day, and every one names the study it came from. When a finding is contested, it says so.