Suppose We Want to Study How a Drug Affects Someone's

question 25

Multiple Choice

Suppose we want to study how a drug affects someone's happiness.It is difficult to make a direct observation of how happy someone is, so which of the following would be the best proxy variable?

• A)time spent exercising
• B)frequency of smiling
• C)use of pain medication
• D)alcohol consumption
• E)frequency of social interaction

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