Dr.Gomez is investigating a new drug designed to reduce anxiety.Patients with an anxiety disorder are treated with either the drug or a sugar pill (placebo)for some time,and Dr.Gomez records their anxiety levels at weekly appointments.If a double-blind procedure is used:
A)only Dr.Gomez will know which patients actually received the drug.
B)the patients will know if they are receiving the drug or the placebo.
C)Dr.Gomez will not be told the operational definition of anxiety.
D)Dr.Gomez will not know which patients actually received the drug.

Question

Quizplus · Accepted Answer

In a double-blind procedure, neither the patients nor the doctor knows which patients received the drug and which received the placebo. This helps to eliminate bias in the study and ensures that any changes in anxiety levels can be attributed to the drug and not to the doctor's expectations or the patients' beliefs about whether they received the drug or not.

DrGomez Is Investigating a New Drug Designed to Reduce Anxiety