Multiple Choice
Can watching a movie temporarily raise your pulse rate? Researchers have 50 volunteers check their pulse rates. Then they watch an action film, after which they check their pulse rates once more. Which aspect of experimentation is present in this research?
A) randomization
B) blinding
C) none of these
D) a placebo
E) a control group
Correct Answer:
Verified
Correct Answer:
Verified
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