Why is a control group important in a scientific experiment?
A. It provides a comparison to the test group.
B. It is the group experiencing the changing variables.
C. It gives the scientist control over when to change variables.
D. It gives the scientist control over which variables to change.
Answer (2)
A control group is essential in scientific experiments as it provides a baseline for comparison with the test group experiencing changing variables. This helps to isolate the effects of the variable being tested and reduces bias in observations. Ultimately, control groups support the validity of the experimental conclusions. ;
A control group is important in scientific experiments because it provides a basis for comparison to the experimental group, isolates the effects of the variable being tested, and reduces bias in observations. This ensures that the conclusions drawn from the experiment are valid. The correct answer to the multiple-choice question is A: It provides a comparison to the test group.
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