Lets say you want to know whether a medication is effective for curing the common cold. You take 1,000 people with colds, and divide them into 2 groups of 500. You give the medication to one group, and placebo to the other group. To make this a DOUBLE-BLIND study, what would you have to do?
- Conceal from both the patients and the experimenters which pills are medication and which pills are placebo.
- Dont tell the administrators of the experiment whether theyre giving out medication or placebo.
- Put blindfolds on the 500 people who get the medication.
- Dont tell the patients of either group whether theyre getting medication or placebo.
Answer
The correct answer is A) Conceal from both the patients and the experimenters which pills are medication and which pills are placebo..
More Science & Technology questions
- What does the sentence, Correlation does not imply causation., mean?
- Which of the following definitions is the definition of the MODE?
- Which of the following definitions is the definition of the MEAN?
- Which of the following definitions is the definition of the MEDIAN?
- Lipitor and Zocor are two popular brand names which fall under what class of cholesterol lowering drugs?
- What deadly and infectious disease that most often attacks the lungs used to be known as consumption?