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8. In an experiment, there are two groups. Which group is not changed in any way?

A. Hypothesis
B. Variable
C. Control
D. Experimental


Sagot :

Final answer:

The control group in an experiment remains unchanged and serves as a reference for comparison to determine the effects of the manipulated variable.


Explanation:

Control group is the group in an experiment that is not changed in any way. It serves as a baseline for comparison with the experimental group, helping to determine the effects of the manipulated variable.

In a study testing a weight-loss drug, the control group would be test subjects that don't receive the drug, providing a reference point to assess the drug's impact.

Having a control group is essential in experimental design to ensure that any observed effects can be attributed to the manipulated variable.


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