A Researcher Tells a Group of Participants That as Part

Multiple Choice

A researcher tells a group of participants that as part of his experiment they are going to receive "painful" electrical shocks. He tells a second group that they will receive "mild" electric shock. He asks participants in both groups whether they prefer to wait alone or with others while he sets up the shock machinery. What is the dependent variable?

A) painful shocks
B) mild shocks
C) participants' answers to the question about waiting
D) the shock machinery