In the Sidewalk Experiment, Various Numbers of People Stood on a Busy

Multiple Choice

In the sidewalk experiment, various numbers of people stood on a busy New York City street and, on cue, began looking at a sixth-floor window across the street. Soon many of the people walking on the street stopped and looked up at the window. This experiment illustrates

A) groupthink.
B) social influence.
C) the fundamental attribution error.
D) cognitive dissonance.