A Pharmaceutical Company Is Conducting an Experiment to Test the Effectiveness

Multiple Choice

A pharmaceutical company is conducting an experiment to test the effectiveness of a tricyclic antidepressant.Which of the following,if true,would indicate that the experimenters used a placebo?

A) The participants were asked to pick a chit,to decide if they were to be assigned to the experimental or control group.
B) The participants were informed about the medication they would be taking and its possible side effects before starting the treatment.
C) The participants in both groups did not know if they were getting a real or a false treatment.
D) The research assistants who administered the drugs were asked to establish rapport with the participants.