Social Proof

Social proof is a commonly used persuasion technique that lends credibility to a subject or idea by associating or validating it using something that the listener already views as being authoritative and valid.

This cigarette ad from 1955 uses a doctor's survey to convince prospective customers that Camel is the brand most preferred by doctors.

Camel Cigarettes

Listerine

This next one combines the scientific proof of "research" with the proof of watching the results in a social situation as the girl gets the guy in the scenerio played out in the ad.

There are many forms of social proof including:

• Testimonials
• Surveys
• Experts

Which of these can you use most effectively to persuade people to adopt your ideas?