This experiment was carried out on the express trains of the New York independent subway and the journey was 7 and a half minutes long. It was conducted during weekdays from 11:00 am to 15:00 pm from April 1968 to 26th June 1968. The train was divided into critical and adjacent areas. This was carried out 103 times.
4 teams of students made up the victim who was either drunk and holding a bottle wrapped in a brown bag or ill with a black cane, they were all male and 3 were white and one was black. The models which were all male and white wore informal clothes, and the two observers were female and sat in the adjacent area and recorded comments, race, sex and location of the passengers in the critical and adjacent areas. They would board the train and then 70 seconds into the journey the victim would collapse , until he received help they would lie on the ground.
Victims were all male, aged between 26-35. Three were white and one was black. They wore eisenhower jackets, old trousers and no tie. On 38 trials the victim appeared drunk and on 68 trials the victim appeared sober and ill. The victim was always in the critical area.
The victim would collapse 70 seconds into the jouney, and he would remain on the ground until he received help.
The model was always a male and aged between 24 and 29. Wore informal clothes. The model would stand in either the critical area- early, so they would assist the victim 70 seconds after he collapsed, the critical area-late, so would assist the victim 150 seconds after he collapsed, the adjacent area- early, so would assist the victim 70 seconds after he collapsed, or adjacent area-late, so would assist the victim 150 seconds after he collapsed. when he helped the victim he would put the victim in a sitting position and would stay with him for the rest of the journey.
There was 2 observers and they were always females, and they always sat in the adjacent area and recorded data and comments made by passengers. One observer would record race, sex and location of every passenger in the critical area. Also counted the total number of indiviuals in the carriage and the total number of people who helped. The other observer would note the race, sex and location of every passenger in the adjacent area. She would also record the length of time it took ( the latency) for the first helper to arrive.