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Controlled variables (constants) and a negative control group are easily confused by students. How would you explain the difference between these two words?
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Controlled variables (constants) and a negative control group are easily confused by students. How would you explain the difference between these two words?

User Mpho
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Answer:

A control variable is any factor you control or hold constant during an experiment and a negative control group is a control group that is not exposed to the experimental treatment or to any other treatment that is expected to have an effect

User NiravS
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