Multiple Choice
An inert substance (such as sugar,water or saline solution) that resembles the dosage treatments (is injected or drank or given in pills the same way) given to experimental groups for testing a new medicine is
A) a placebo.
B) an independent variable.
C) a standardized variable.
D) never used in an experiment.
Correct Answer:
Verified
Correct Answer:
Verified
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