The Most Important Advantage of Experiments Over Observational Studies Is

question 36

Multiple Choice

The most important advantage of experiments over observational studies is

• A) experiments are usually easier to carry out.
• B) a well-designed experiment can give good evidence that the treatments actually cause the response.
• C) an experiment can compare two or more groups.
• D) we can use randomization to avoid bias in designing an experiment.
• E) we can study the relationship between two or more explanatory variables.

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