Multiple Choice
In a double-blind study examining the effects of a new cola-flavored energy drink on people's physiological arousal, participants in the experimental drink condition demonstrated significantly greater arousal than the control group. However, upon further investigation, a third, placebo group (using flavored Coca-Cola) , also showed significantly greater arousal than the control group. Which of the following may have influenced the results of this study?
A) participants' expectations about the effects of an experimental energy drink
B) experimenters' expectations about the effects of the experimental energy drink
C) the drink that was used as a placebo
D) A and B
E) A and C
F) all of the above
Correct Answer:

Verified
Correct Answer:
Verified
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