To test their theory of emotion, Schachter and Singer injected some participants with epinephrine and some with a placebo. If Shachter and Singer conducted a double-blind experiment, then:
A)each participant would not know whether he or she had received epinephrine or a placebo, but the assistant administering the study would know whether a given participant had received epinephrine or a placebo.
B)each participant would know whether he or she had received epinephrine or a placebo, but the assistant administering the study would not know whether a given participant had received epinephrine or a placebo.
C)each participant would know whether he or she had received epinephrine or a placebo, and the assistant administering the study would also know whether a given participant had received epinephrine or a placebo.
D)each participant would not know whether he or she had received epinephrine or a placebo, and the assistant administering the study would also not know whether a given participant had received epinephrine or a placebo.

Question

Quizplus · Accepted Answer

In a double-blind experiment, neither the participants nor the experimenters know who is receiving the active treatment versus a placebo, to prevent bias in the results.

To Test Their Theory of Emotion, Schachter and Singer Injected