DrWarner Is Studying the Effects of Vitamin C Consumption on the Frequency

question 124

Multiple Choice

Dr.Warner is studying the effects of vitamin C consumption on the frequency of common colds.To do this,he gives a random half of his sample of participants a large dose of vitamin C to consume daily for one year,while the other group takes a placebo daily for one year.The frequency of colds is recorded for the duration of the year.In this study,what is the control group?

• A) the group that gets more colds throughout the year
• B) the group that consumes the vitamin C daily for one year
• C) the group that consumes a placebo daily for one year
• D) the group that gets fewer colds throughout the year

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