Question
An advantage of survey research is that it:
• allows us to make inferences regarding cause-effect relations.
O is an efficient way to gather information about people's opinions and lifestyles.
• is usually conducted without people knowing that they are being observed.
O is unusually effective at reducing the placebo effect.
Answer
Survey research is an efficient way to gather information about people's opinions and lifestyles, is usually conducted without people knowing that they are being observed, and is unusually effective at reducing the placebo effect.