Activity 2.1

Activity . Two American psychologists, Bibb Latane and John Darley, conducted a study in . In order to participate in this study, the students of Columbia University arrived individually at a laboratory. They were given the impression that they would be interviewed on a certain topic. Each student was sent to a waiting room to complete a preliminary questionnaire. Some of them found two other people already seated in the room, while others sat down alone. Soon after the students had started working on the questionnaire, smoke began filling the room through a wall vent. The smoke could hardly be .