In a controlled experiment, keeping all other conditions constant helps ensure...

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Prepare for the TEAS 7 Scientific Reasoning Test with interactive questions, flashcards, and insightful explanations. Enhance your knowledge and gear up for exam success!

Multiple Choice

In a controlled experiment, keeping all other conditions constant helps ensure...

Explanation:
Isolating the variable of interest by holding everything else constant lets you attribute any observed change to that variable, not to other changing conditions. This removes confounding influences that could introduce bias or unpredictable outcomes, so the results aren’t skewed by unintended shifts in the environment. The outcome may be larger, smaller, or unchanged; what matters is that the change is due to the tested factor.

Isolating the variable of interest by holding everything else constant lets you attribute any observed change to that variable, not to other changing conditions. This removes confounding influences that could introduce bias or unpredictable outcomes, so the results aren’t skewed by unintended shifts in the environment. The outcome may be larger, smaller, or unchanged; what matters is that the change is due to the tested factor.

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