Adam Is Taking Part in an Experiment on the Effects

question 69

Multiple Choice

Adam is taking part in an experiment on the effects of a new anti-allergy drug. He is asked to take injections every week for three months to see if the injections affect his allergies. He will not find out, nor will the doctors giving him the injections, whether or not he has received the real anti-allergy drug or a placebo until after the study is over. The type of study he is involved in is called a ________ study.

• A) double-blind
• B) case
• C) single-blind
• D) placebo

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