In 1975, Cialdini and Colleagues Asked College Students to Spend

Multiple Choice

In 1975, Cialdini and colleagues asked college students to spend 2 hours chaperoning a group of children on a field trip to the zoo.Only _____ agreed to this request.However, after first asking another group of college students to volunteer every week, for a minimum of two years, _______ agreed to the second request to chaperon the zoo trip because of the door-in-the-face technique.

A) 50%; 17%
B) 17%; 100%
C) 100%; 50%
D) 17%; 50%