Cialdini raamat
than by any proof we can offer."
Researchers, too, have employed procedures based on the principle of social
proof-sometimes with astounding results. 1 One psychologist in particular, Albert
Bandura, has led the way in developing such procedures to eliminate undesirable
behavior. Bandura and his colleagues have shown how people suffering from pho-
bias can be rid of these extreme fears in an amazingly simple fashion. For instance,
in an early study (Bandura, Grusec, 8{ Menlove, 1967), nursery-school-age children,
chosen because they were terrified of dogs, merely watched a little boy playing
happily with a dog for 20 minutes a day. This exhibition produced such marked
changes in the reactions of the fearful children that, after only four days, 67 percent
of them were willing to climb into a playpen with a dog and remain confined there
petting and scratching the dog while everyone else left the room. Moreover, when