In a study done in the 1960's, homeowners were asked to put a 3 inch "be a safe driver" sign in their cars. two weeks later, people were asked to place a large, ugly "drive carefully" sign in their front yard. of the people who agreed to put the small sign in their cars, 76% agreed to put the sign in their yards, whereas only 17% of those who didn't get asked to put a sign in their cars agreed to put the sign in their front yards. what tactic does this illustrate

Foot-in-the-door technique.

Explanation:

This method is commonly used in the field of social psychology. It is a type of compliance method. The basic principle is to ask someone for something small and modest and have them agree on that. If the request is accepted and the person who agreed feel an obligation to agree to a bigger request to stay consistent to the their first decision. This method is used to increase the likelihood of agreeing to your request. It is a reference to the door to door salesman who keeps the door from shuting with his foot.

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