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If you have a control group for your experiment, which of the following is true?
a. The control group is exactly the same as the test group.
b. The control group is identical to each test group except for one variable.
c. There can be more than one difference between the control group and the test groups.
d. The control group and the test groups may have two or more differences between them.

Respuesta :

Actually both a) and b) are correct.

About A): the two groups should be identical (but not the same, i.e. have the same attributes), only the treatment of them - the independent variable should be different.

But the one option to choose is b: The control group is identical to each test group except for one variable. This is the independent variable.

the answer for this would be b because of the independent variable

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