In module in D2L, there was a video about participants who t…

In module in D2L, there was a video about participants who thought they were participating in research on online shopping. It was staged so that smoke was emitted from under one door in the room and sound effects were also used (the adjacent room was the kitchen). Participants were either alone or with a group of paid actors to appear as if nothing were happening and show no concern or distress. When participants were seated with the group, on average, how long did it take them to leave the room?