A Controlled Experiment Is One in Which

question 59

Multiple Choice

A controlled experiment is one in which

• A) the experiment is repeated many times to ensure that the results are accurate.
• B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
• C) there are at least two groups, one of which does not receive the experimental treatment.
• D) there are at least two groups, one differing from the other by two or more variables.
• E) there is one group for which the scientist controls all variables.

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Definitions:

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The act of organizing or grouping entities based on shared characteristics or criteria.

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