You Have Designed an Experiment to Test a New Drug

question 164

Multiple Choice

You have designed an experiment to test a new drug. You prepare the injection doses of the drug and a placebo and label them with different letters. Then, you hire research assistants to give the injections and to collect data from the participants. Neither the research assistants nor the participants will know which injection is the drug or the placebo, or whether a participant is in the experimental or the control group. You have

• A) created a placebo effect.
• B) designed a single-blind experiment.
• C) designed a double-blind experiment.
• D) created a self-fulfilling prophecy.

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